Home / 290,030,248.19-435,041,109.66-71,680,609.04

Finding the Fourth Proportional to 290,030,248.19, 435,041,109.66 and 71,680,609.04

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Solution

The fourth proportional to 290,030,248.19, 435,041,109.66 and 71,680,609.04 is: 107,519,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,030,248.19 : 435,041,109.66 = 71,680,609.04 : x
  2. Step 2: Convert to fraction form
    290,030,248.19/435,041,109.66 = 71,680,609.04/x
  3. Step 3: Cross multiply
    290,030,248.19x = 435,041,109.66 × 71,680,609.04
  4. Step 4: Simplify right side
    290,030,248.19x = 31,184,011,695,691,024
  5. Step 5: Solve for x
    x = 31,184,011,695,691,024/290,030,248.19
  6. Step 6: Final answer
    x = 107,519,860.05

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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.