Home / 539,136,670.60-808,705,005.90-431,641,246.60

Finding the Fourth Proportional to 539,136,670.60, 808,705,005.90 and 431,641,246.60

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Solution

The fourth proportional to 539,136,670.60, 808,705,005.90 and 431,641,246.60 is: 647,461,869.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,136,670.60 : 808,705,005.90 = 431,641,246.60 : x
  2. Step 2: Convert to fraction form
    539,136,670.60/808,705,005.90 = 431,641,246.60/x
  3. Step 3: Cross multiply
    539,136,670.60x = 808,705,005.90 × 431,641,246.60
  4. Step 4: Simplify right side
    539,136,670.60x = 349,070,436,878,336,384
  5. Step 5: Solve for x
    x = 349,070,436,878,336,384/539,136,670.60
  6. Step 6: Final answer
    x = 647,461,869.90

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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.