Home / 86,907,807.40-130,361,711.10-85,564,114.60

Finding the Fourth Proportional to 86,907,807.40, 130,361,711.10 and 85,564,114.60

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Solution

The fourth proportional to 86,907,807.40, 130,361,711.10 and 85,564,114.60 is: 128,346,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,907,807.40 : 130,361,711.10 = 85,564,114.60 : x
  2. Step 2: Convert to fraction form
    86,907,807.40/130,361,711.10 = 85,564,114.60/x
  3. Step 3: Cross multiply
    86,907,807.40x = 130,361,711.10 × 85,564,114.60
  4. Step 4: Simplify right side
    86,907,807.40x = 11,154,284,388,012,490
  5. Step 5: Solve for x
    x = 11,154,284,388,012,490/86,907,807.40
  6. Step 6: Final answer
    x = 128,346,171.90

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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.