Home / 410,634,264.15-615,951,403.35-99,739,785.21

Finding the Fourth Proportional to 410,634,264.15, 615,951,403.35 and 99,739,785.21

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Solution

The fourth proportional to 410,634,264.15, 615,951,403.35 and 99,739,785.21 is: 149,609,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,634,264.15 : 615,951,403.35 = 99,739,785.21 : x
  2. Step 2: Convert to fraction form
    410,634,264.15/615,951,403.35 = 99,739,785.21/x
  3. Step 3: Cross multiply
    410,634,264.15x = 615,951,403.35 × 99,739,785.21
  4. Step 4: Simplify right side
    410,634,264.15x = 61,434,860,669,927,072
  5. Step 5: Solve for x
    x = 61,434,860,669,927,072/410,634,264.15
  6. Step 6: Final answer
    x = 149,609,679.55

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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.