Home / 124,216,779.60-186,325,169.40-42,428,009.70

Finding the Fourth Proportional to 124,216,779.60, 186,325,169.40 and 42,428,009.70

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Solution

The fourth proportional to 124,216,779.60, 186,325,169.40 and 42,428,009.70 is: 63,642,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,216,779.60 : 186,325,169.40 = 42,428,009.70 : x
  2. Step 2: Convert to fraction form
    124,216,779.60/186,325,169.40 = 42,428,009.70/x
  3. Step 3: Cross multiply
    124,216,779.60x = 186,325,169.40 × 42,428,009.70
  4. Step 4: Simplify right side
    124,216,779.60x = 7,905,406,094,657,344
  5. Step 5: Solve for x
    x = 7,905,406,094,657,344/124,216,779.60
  6. Step 6: Final answer
    x = 63,642,014.55

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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.