Home / 123,418,776.35-170,335,262.95-76,390,934.87

Finding the Fourth Proportional to 123,418,776.35, 170,335,262.95 and 76,390,934.87

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Solution

The fourth proportional to 123,418,776.35, 170,335,262.95 and 76,390,934.87 is: 105,430,230.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,418,776.35 : 170,335,262.95 = 76,390,934.87 : x
  2. Step 2: Convert to fraction form
    123,418,776.35/170,335,262.95 = 76,390,934.87/x
  3. Step 3: Cross multiply
    123,418,776.35x = 170,335,262.95 × 76,390,934.87
  4. Step 4: Simplify right side
    123,418,776.35x = 13,012,069,978,312,634
  5. Step 5: Solve for x
    x = 13,012,069,978,312,634/123,418,776.35
  6. Step 6: Final answer
    x = 105,430,230.01

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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.