Home / 1,409,664,153.10-2,114,496,229.65-858,666,124.30

Finding the Fourth Proportional to 1,409,664,153.10, 2,114,496,229.65 and 858,666,124.30

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Solution

The fourth proportional to 1,409,664,153.10, 2,114,496,229.65 and 858,666,124.30 is: 1,287,999,186.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,664,153.10 : 2,114,496,229.65 = 858,666,124.30 : x
  2. Step 2: Convert to fraction form
    1,409,664,153.10/2,114,496,229.65 = 858,666,124.30/x
  3. Step 3: Cross multiply
    1,409,664,153.10x = 2,114,496,229.65 × 858,666,124.30
  4. Step 4: Simplify right side
    1,409,664,153.10x = 1,815,646,282,360,528,128
  5. Step 5: Solve for x
    x = 1,815,646,282,360,528,128/1,409,664,153.10
  6. Step 6: Final answer
    x = 1,287,999,186.45

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Double scale
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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.