Home / 72,423,319.80-108,634,979.70-31,502,362.80

Finding the Fourth Proportional to 72,423,319.80, 108,634,979.70 and 31,502,362.80

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Solution

The fourth proportional to 72,423,319.80, 108,634,979.70 and 31,502,362.80 is: 47,253,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,423,319.80 : 108,634,979.70 = 31,502,362.80 : x
  2. Step 2: Convert to fraction form
    72,423,319.80/108,634,979.70 = 31,502,362.80/x
  3. Step 3: Cross multiply
    72,423,319.80x = 108,634,979.70 × 31,502,362.80
  4. Step 4: Simplify right side
    72,423,319.80x = 3,422,258,543,280,035.50
  5. Step 5: Solve for x
    x = 3,422,258,543,280,035.50/72,423,319.80
  6. Step 6: Final answer
    x = 47,253,544.20

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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.