Home / 72,530,378.15-100,090,982.96-39,490,248.32

Finding the Fourth Proportional to 72,530,378.15, 100,090,982.96 and 39,490,248.32

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Solution

The fourth proportional to 72,530,378.15, 100,090,982.96 and 39,490,248.32 is: 54,496,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,530,378.15 : 100,090,982.96 = 39,490,248.32 : x
  2. Step 2: Convert to fraction form
    72,530,378.15/100,090,982.96 = 39,490,248.32/x
  3. Step 3: Cross multiply
    72,530,378.15x = 100,090,982.96 × 39,490,248.32
  4. Step 4: Simplify right side
    72,530,378.15x = 3,952,617,771,182,833
  5. Step 5: Solve for x
    x = 3,952,617,771,182,833/72,530,378.15
  6. Step 6: Final answer
    x = 54,496,031.48

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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.