Home / 20,719,761.60-31,079,642.40-19,544,030.40

Finding the Fourth Proportional to 20,719,761.60, 31,079,642.40 and 19,544,030.40

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Solution

The fourth proportional to 20,719,761.60, 31,079,642.40 and 19,544,030.40 is: 29,316,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719,761.60 : 31,079,642.40 = 19,544,030.40 : x
  2. Step 2: Convert to fraction form
    20,719,761.60/31,079,642.40 = 19,544,030.40/x
  3. Step 3: Cross multiply
    20,719,761.60x = 31,079,642.40 × 19,544,030.40
  4. Step 4: Simplify right side
    20,719,761.60x = 607,421,475,886,728.88
  5. Step 5: Solve for x
    x = 607,421,475,886,728.88/20,719,761.60
  6. Step 6: Final answer
    x = 29,316,045.60

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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.