Home / 538,828,680.60-808,243,020.90-487,172,615.40

Finding the Fourth Proportional to 538,828,680.60, 808,243,020.90 and 487,172,615.40

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Solution

The fourth proportional to 538,828,680.60, 808,243,020.90 and 487,172,615.40 is: 730,758,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,828,680.60 : 808,243,020.90 = 487,172,615.40 : x
  2. Step 2: Convert to fraction form
    538,828,680.60/808,243,020.90 = 487,172,615.40/x
  3. Step 3: Cross multiply
    538,828,680.60x = 808,243,020.90 × 487,172,615.40
  4. Step 4: Simplify right side
    538,828,680.60x = 393,753,866,370,649,856
  5. Step 5: Solve for x
    x = 393,753,866,370,649,856/538,828,680.60
  6. Step 6: Final answer
    x = 730,758,923.10

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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.