Home / 72,291,416.65-99,763,888.52-39,253,058.28

Finding the Fourth Proportional to 72,291,416.65, 99,763,888.52 and 39,253,058.28

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Solution

The fourth proportional to 72,291,416.65, 99,763,888.52 and 39,253,058.28 is: 54,170,161.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,291,416.65 : 99,763,888.52 = 39,253,058.28 : x
  2. Step 2: Convert to fraction form
    72,291,416.65/99,763,888.52 = 39,253,058.28/x
  3. Step 3: Cross multiply
    72,291,416.65x = 99,763,888.52 × 39,253,058.28
  4. Step 4: Simplify right side
    72,291,416.65x = 3,916,037,730,413,115.50
  5. Step 5: Solve for x
    x = 3,916,037,730,413,115.50/72,291,416.65
  6. Step 6: Final answer
    x = 54,170,161.72

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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.