Home / 639,988,374.04-883,255,632.12-361,547,833.70

Finding the Fourth Proportional to 639,988,374.04, 883,255,632.12 and 361,547,833.70

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Solution

The fourth proportional to 639,988,374.04, 883,255,632.12 and 361,547,833.70 is: 498,976,502.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,988,374.04 : 883,255,632.12 = 361,547,833.70 : x
  2. Step 2: Convert to fraction form
    639,988,374.04/883,255,632.12 = 361,547,833.70/x
  3. Step 3: Cross multiply
    639,988,374.04x = 883,255,632.12 × 361,547,833.70
  4. Step 4: Simplify right side
    639,988,374.04x = 319,339,160,398,518,272
  5. Step 5: Solve for x
    x = 319,339,160,398,518,272/639,988,374.04
  6. Step 6: Final answer
    x = 498,976,502.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.