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Finding the Fourth Proportional to 559,874,443.60, 840,231,569.40 and 287,104,805.20

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Solution

The fourth proportional to 559,874,443.60, 840,231,569.40 and 287,104,805.20 is: 430,872,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,874,443.60 : 840,231,569.40 = 287,104,805.20 : x
  2. Step 2: Convert to fraction form
    559,874,443.60/840,231,569.40 = 287,104,805.20/x
  3. Step 3: Cross multiply
    559,874,443.60x = 840,231,569.40 × 287,104,805.20
  4. Step 4: Simplify right side
    559,874,443.60x = 241,234,521,055,477,280
  5. Step 5: Solve for x
    x = 241,234,521,055,477,280/559,874,443.60
  6. Step 6: Final answer
    x = 430,872,535.46

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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.