Home / 870,940,982.40-1,306,411,473.60-353,619,254.40

Finding the Fourth Proportional to 870,940,982.40, 1,306,411,473.60 and 353,619,254.40

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Solution

The fourth proportional to 870,940,982.40, 1,306,411,473.60 and 353,619,254.40 is: 530,428,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,940,982.40 : 1,306,411,473.60 = 353,619,254.40 : x
  2. Step 2: Convert to fraction form
    870,940,982.40/1,306,411,473.60 = 353,619,254.40/x
  3. Step 3: Cross multiply
    870,940,982.40x = 1,306,411,473.60 × 353,619,254.40
  4. Step 4: Simplify right side
    870,940,982.40x = 461,972,251,234,037,248
  5. Step 5: Solve for x
    x = 461,972,251,234,037,248/870,940,982.40
  6. Step 6: Final answer
    x = 530,428,881.60

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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.