Home / 1,323,648,989.20-1,985,473,483.80-354,300,605.20

Finding the Fourth Proportional to 1,323,648,989.20, 1,985,473,483.80 and 354,300,605.20

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Solution

The fourth proportional to 1,323,648,989.20, 1,985,473,483.80 and 354,300,605.20 is: 531,450,907.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,648,989.20 : 1,985,473,483.80 = 354,300,605.20 : x
  2. Step 2: Convert to fraction form
    1,323,648,989.20/1,985,473,483.80 = 354,300,605.20/x
  3. Step 3: Cross multiply
    1,323,648,989.20x = 1,985,473,483.80 × 354,300,605.20
  4. Step 4: Simplify right side
    1,323,648,989.20x = 703,454,456,918,892,416
  5. Step 5: Solve for x
    x = 703,454,456,918,892,416/1,323,648,989.20
  6. Step 6: Final answer
    x = 531,450,907.80

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Double scale
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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.