Home / 1,042,902,125.40-1,564,563,140.10-305,970,605.40

Finding the Fourth Proportional to 1,042,902,125.40, 1,564,563,140.10 and 305,970,605.40

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Solution

The fourth proportional to 1,042,902,125.40, 1,564,563,140.10 and 305,970,605.40 is: 459,017,504.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,902,125.40 : 1,564,563,140.10 = 305,970,605.40 : x
  2. Step 2: Convert to fraction form
    1,042,902,125.40/1,564,563,140.10 = 305,970,605.40/x
  3. Step 3: Cross multiply
    1,042,902,125.40x = 1,564,563,140.10 × 305,970,605.40
  4. Step 4: Simplify right side
    1,042,902,125.40x = 478,710,331,162,921,920
  5. Step 5: Solve for x
    x = 478,710,331,162,921,920/1,042,902,125.40
  6. Step 6: Final answer
    x = 459,017,504.62

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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.