Home / 30,475,330.80-45,712,494-12,279,082.56

Finding the Fourth Proportional to 30,475,330.80, 45,712,494 and 12,279,082.56

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Solution

The fourth proportional to 30,475,330.80, 45,712,494 and 12,279,082.56 is: 18,418,421.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475,330.80 : 45,712,494 = 12,279,082.56 : x
  2. Step 2: Convert to fraction form
    30,475,330.80/45,712,494 = 12,279,082.56/x
  3. Step 3: Cross multiply
    30,475,330.80x = 45,712,494 × 12,279,082.56
  4. Step 4: Simplify right side
    30,475,330.80x = 561,307,487,849,504.69
  5. Step 5: Solve for x
    x = 561,307,487,849,504.69/30,475,330.80
  6. Step 6: Final answer
    x = 18,418,421.49

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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.