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Finding the Fourth Proportional to 417,493,386.60, 626,240,079.90 and 254,234,711.40

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Solution

The fourth proportional to 417,493,386.60, 626,240,079.90 and 254,234,711.40 is: 381,352,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,493,386.60 : 626,240,079.90 = 254,234,711.40 : x
  2. Step 2: Convert to fraction form
    417,493,386.60/626,240,079.90 = 254,234,711.40/x
  3. Step 3: Cross multiply
    417,493,386.60x = 626,240,079.90 × 254,234,711.40
  4. Step 4: Simplify right side
    417,493,386.60x = 159,211,965,980,489,440
  5. Step 5: Solve for x
    x = 159,211,965,980,489,440/417,493,386.60
  6. Step 6: Final answer
    x = 381,352,067.10

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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.