Home / 1,158,971,208.90-1,738,456,813.35-698,672,444.10

Finding the Fourth Proportional to 1,158,971,208.90, 1,738,456,813.35 and 698,672,444.10

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Solution

The fourth proportional to 1,158,971,208.90, 1,738,456,813.35 and 698,672,444.10 is: 1,048,008,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,971,208.90 : 1,738,456,813.35 = 698,672,444.10 : x
  2. Step 2: Convert to fraction form
    1,158,971,208.90/1,738,456,813.35 = 698,672,444.10/x
  3. Step 3: Cross multiply
    1,158,971,208.90x = 1,738,456,813.35 × 698,672,444.10
  4. Step 4: Simplify right side
    1,158,971,208.90x = 1,214,611,870,745,541,888
  5. Step 5: Solve for x
    x = 1,214,611,870,745,541,888/1,158,971,208.90
  6. Step 6: Final answer
    x = 1,048,008,666.15

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Double scale
Find fourth proportional to 1,158,971,209.90, 1,738,456,814.85 and 698,672,445.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.