Home / 78,041,010.96-107,688,746.28-43,227,196.78

Finding the Fourth Proportional to 78,041,010.96, 107,688,746.28 and 43,227,196.78

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Solution

The fourth proportional to 78,041,010.96, 107,688,746.28 and 43,227,196.78 is: 59,649,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,041,010.96 : 107,688,746.28 = 43,227,196.78 : x
  2. Step 2: Convert to fraction form
    78,041,010.96/107,688,746.28 = 43,227,196.78/x
  3. Step 3: Cross multiply
    78,041,010.96x = 107,688,746.28 × 43,227,196.78
  4. Step 4: Simplify right side
    78,041,010.96x = 4,655,082,626,437,053
  5. Step 5: Solve for x
    x = 4,655,082,626,437,053/78,041,010.96
  6. Step 6: Final answer
    x = 59,649,184.05

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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.