Home / 426,528,094.70-639,792,142.05-353,826,965.90

Finding the Fourth Proportional to 426,528,094.70, 639,792,142.05 and 353,826,965.90

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Solution

The fourth proportional to 426,528,094.70, 639,792,142.05 and 353,826,965.90 is: 530,740,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,528,094.70 : 639,792,142.05 = 353,826,965.90 : x
  2. Step 2: Convert to fraction form
    426,528,094.70/639,792,142.05 = 353,826,965.90/x
  3. Step 3: Cross multiply
    426,528,094.70x = 639,792,142.05 × 353,826,965.90
  4. Step 4: Simplify right side
    426,528,094.70x = 226,375,712,428,213,280
  5. Step 5: Solve for x
    x = 226,375,712,428,213,280/426,528,094.70
  6. Step 6: Final answer
    x = 530,740,448.85

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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.