Home / 72,584,672.40-108,877,008.60-70,884,061.20

Finding the Fourth Proportional to 72,584,672.40, 108,877,008.60 and 70,884,061.20

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Solution

The fourth proportional to 72,584,672.40, 108,877,008.60 and 70,884,061.20 is: 106,326,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,584,672.40 : 108,877,008.60 = 70,884,061.20 : x
  2. Step 2: Convert to fraction form
    72,584,672.40/108,877,008.60 = 70,884,061.20/x
  3. Step 3: Cross multiply
    72,584,672.40x = 108,877,008.60 × 70,884,061.20
  4. Step 4: Simplify right side
    72,584,672.40x = 7,717,644,540,875,326
  5. Step 5: Solve for x
    x = 7,717,644,540,875,326/72,584,672.40
  6. Step 6: Final answer
    x = 106,326,091.80

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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.