Home / 78,092,881.09-107,767,990.14-42,810,624.07

Finding the Fourth Proportional to 78,092,881.09, 107,767,990.14 and 42,810,624.07

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Solution

The fourth proportional to 78,092,881.09, 107,767,990.14 and 42,810,624.07 is: 59,078,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,092,881.09 : 107,767,990.14 = 42,810,624.07 : x
  2. Step 2: Convert to fraction form
    78,092,881.09/107,767,990.14 = 42,810,624.07/x
  3. Step 3: Cross multiply
    78,092,881.09x = 107,767,990.14 × 42,810,624.07
  4. Step 4: Simplify right side
    78,092,881.09x = 4,613,614,912,663,007
  5. Step 5: Solve for x
    x = 4,613,614,912,663,007/78,092,881.09
  6. Step 6: Final answer
    x = 59,078,559.38

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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.