Home / 78,131,204.15-107,799,071.85-61,559,955.23

Finding the Fourth Proportional to 78,131,204.15, 107,799,071.85 and 61,559,955.23

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Solution

The fourth proportional to 78,131,204.15, 107,799,071.85 and 61,559,955.23 is: 84,935,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,131,204.15 : 107,799,071.85 = 61,559,955.23 : x
  2. Step 2: Convert to fraction form
    78,131,204.15/107,799,071.85 = 61,559,955.23/x
  3. Step 3: Cross multiply
    78,131,204.15x = 107,799,071.85 × 61,559,955.23
  4. Step 4: Simplify right side
    78,131,204.15x = 6,636,106,036,382,558
  5. Step 5: Solve for x
    x = 6,636,106,036,382,558/78,131,204.15
  6. Step 6: Final answer
    x = 84,935,412.29

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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.