Home / 145,761,551.73-218,642,742.42-42,139,192.65

Finding the Fourth Proportional to 145,761,551.73, 218,642,742.42 and 42,139,192.65

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Solution

The fourth proportional to 145,761,551.73, 218,642,742.42 and 42,139,192.65 is: 63,208,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,761,551.73 : 218,642,742.42 = 42,139,192.65 : x
  2. Step 2: Convert to fraction form
    145,761,551.73/218,642,742.42 = 42,139,192.65/x
  3. Step 3: Cross multiply
    145,761,551.73x = 218,642,742.42 × 42,139,192.65
  4. Step 4: Simplify right side
    145,761,551.73x = 9,213,428,643,382,776
  5. Step 5: Solve for x
    x = 9,213,428,643,382,776/145,761,551.73
  6. Step 6: Final answer
    x = 63,208,908.89

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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.