Home / 82,742,975.20-124,114,462.80-73,814,766.40

Finding the Fourth Proportional to 82,742,975.20, 124,114,462.80 and 73,814,766.40

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Solution

The fourth proportional to 82,742,975.20, 124,114,462.80 and 73,814,766.40 is: 110,722,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,742,975.20 : 124,114,462.80 = 73,814,766.40 : x
  2. Step 2: Convert to fraction form
    82,742,975.20/124,114,462.80 = 73,814,766.40/x
  3. Step 3: Cross multiply
    82,742,975.20x = 124,114,462.80 × 73,814,766.40
  4. Step 4: Simplify right side
    82,742,975.20x = 9,161,480,078,443,490
  5. Step 5: Solve for x
    x = 9,161,480,078,443,490/82,742,975.20
  6. Step 6: Final answer
    x = 110,722,149.60

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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.