Home / 1,145,115,374.40-1,717,673,061.60-531,495,662.40

Finding the Fourth Proportional to 1,145,115,374.40, 1,717,673,061.60 and 531,495,662.40

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Solution

The fourth proportional to 1,145,115,374.40, 1,717,673,061.60 and 531,495,662.40 is: 797,243,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,115,374.40 : 1,717,673,061.60 = 531,495,662.40 : x
  2. Step 2: Convert to fraction form
    1,145,115,374.40/1,717,673,061.60 = 531,495,662.40/x
  3. Step 3: Cross multiply
    1,145,115,374.40x = 1,717,673,061.60 × 531,495,662.40
  4. Step 4: Simplify right side
    1,145,115,374.40x = 912,935,781,661,727,872
  5. Step 5: Solve for x
    x = 912,935,781,661,727,872/1,145,115,374.40
  6. Step 6: Final answer
    x = 797,243,493.60

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Double scale
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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.