Home / 99,391,031.47-148,892,595.44-77,428,575.34

Finding the Fourth Proportional to 99,391,031.47, 148,892,595.44 and 77,428,575.34

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Solution

The fourth proportional to 99,391,031.47, 148,892,595.44 and 77,428,575.34 is: 115,991,768.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,031.47 : 148,892,595.44 = 77,428,575.34 : x
  2. Step 2: Convert to fraction form
    99,391,031.47/148,892,595.44 = 77,428,575.34/x
  3. Step 3: Cross multiply
    99,391,031.47x = 148,892,595.44 × 77,428,575.34
  4. Step 4: Simplify right side
    99,391,031.47x = 11,528,541,543,270,728
  5. Step 5: Solve for x
    x = 11,528,541,543,270,728/99,391,031.47
  6. Step 6: Final answer
    x = 115,991,768.80

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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.