Home / 100,742,713.55-150,862,127.93-80,587,321.55

Finding the Fourth Proportional to 100,742,713.55, 150,862,127.93 and 80,587,321.55

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Solution

The fourth proportional to 100,742,713.55, 150,862,127.93 and 80,587,321.55 is: 120,679,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,742,713.55 : 150,862,127.93 = 80,587,321.55 : x
  2. Step 2: Convert to fraction form
    100,742,713.55/150,862,127.93 = 80,587,321.55/x
  3. Step 3: Cross multiply
    100,742,713.55x = 150,862,127.93 × 80,587,321.55
  4. Step 4: Simplify right side
    100,742,713.55x = 12,157,574,812,809,210
  5. Step 5: Solve for x
    x = 12,157,574,812,809,210/100,742,713.55
  6. Step 6: Final answer
    x = 120,679,445.53

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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.