Home / 78,559,999.50-108,412,832.52-45,539,402.07

Finding the Fourth Proportional to 78,559,999.50, 108,412,832.52 and 45,539,402.07

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Solution

The fourth proportional to 78,559,999.50, 108,412,832.52 and 45,539,402.07 is: 62,844,394.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,559,999.50 : 108,412,832.52 = 45,539,402.07 : x
  2. Step 2: Convert to fraction form
    78,559,999.50/108,412,832.52 = 45,539,402.07/x
  3. Step 3: Cross multiply
    78,559,999.50x = 108,412,832.52 × 45,539,402.07
  4. Step 4: Simplify right side
    78,559,999.50x = 4,937,055,569,675,851
  5. Step 5: Solve for x
    x = 4,937,055,569,675,851/78,559,999.50
  6. Step 6: Final answer
    x = 62,844,394.11

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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.