Home / 90,742,460.90-136,113,691.35-79,405,052.90

Finding the Fourth Proportional to 90,742,460.90, 136,113,691.35 and 79,405,052.90

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Solution

The fourth proportional to 90,742,460.90, 136,113,691.35 and 79,405,052.90 is: 119,107,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,742,460.90 : 136,113,691.35 = 79,405,052.90 : x
  2. Step 2: Convert to fraction form
    90,742,460.90/136,113,691.35 = 79,405,052.90/x
  3. Step 3: Cross multiply
    90,742,460.90x = 136,113,691.35 × 79,405,052.90
  4. Step 4: Simplify right side
    90,742,460.90x = 10,808,114,862,061,022
  5. Step 5: Solve for x
    x = 10,808,114,862,061,022/90,742,460.90
  6. Step 6: Final answer
    x = 119,107,579.35

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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.