Home / 410,111,215.85-615,168,419.75-99,218,332.96

Finding the Fourth Proportional to 410,111,215.85, 615,168,419.75 and 99,218,332.96

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Solution

The fourth proportional to 410,111,215.85, 615,168,419.75 and 99,218,332.96 is: 148,827,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,111,215.85 : 615,168,419.75 = 99,218,332.96 : x
  2. Step 2: Convert to fraction form
    410,111,215.85/615,168,419.75 = 99,218,332.96/x
  3. Step 3: Cross multiply
    410,111,215.85x = 615,168,419.75 × 99,218,332.96
  4. Step 4: Simplify right side
    410,111,215.85x = 61,035,985,097,232,536
  5. Step 5: Solve for x
    x = 61,035,985,097,232,536/410,111,215.85
  6. Step 6: Final answer
    x = 148,827,885.55

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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.