Home / 1,129,532,213.90-1,694,298,320.85-402,258,485.90

Finding the Fourth Proportional to 1,129,532,213.90, 1,694,298,320.85 and 402,258,485.90

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Solution

The fourth proportional to 1,129,532,213.90, 1,694,298,320.85 and 402,258,485.90 is: 603,387,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,532,213.90 : 1,694,298,320.85 = 402,258,485.90 : x
  2. Step 2: Convert to fraction form
    1,129,532,213.90/1,694,298,320.85 = 402,258,485.90/x
  3. Step 3: Cross multiply
    1,129,532,213.90x = 1,694,298,320.85 × 402,258,485.90
  4. Step 4: Simplify right side
    1,129,532,213.90x = 681,545,877,208,033,280
  5. Step 5: Solve for x
    x = 681,545,877,208,033,280/1,129,532,213.90
  6. Step 6: Final answer
    x = 603,387,728.85

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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.