Home / 90,877,749.56-136,215,652.98-69,241,019.84

Finding the Fourth Proportional to 90,877,749.56, 136,215,652.98 and 69,241,019.84

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Solution

The fourth proportional to 90,877,749.56, 136,215,652.98 and 69,241,019.84 is: 103,784,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,877,749.56 : 136,215,652.98 = 69,241,019.84 : x
  2. Step 2: Convert to fraction form
    90,877,749.56/136,215,652.98 = 69,241,019.84/x
  3. Step 3: Cross multiply
    90,877,749.56x = 136,215,652.98 × 69,241,019.84
  4. Step 4: Simplify right side
    90,877,749.56x = 9,431,710,730,506,734
  5. Step 5: Solve for x
    x = 9,431,710,730,506,734/90,877,749.56
  6. Step 6: Final answer
    x = 103,784,598.28

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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.