Home / 19,300,742.52-28,956,717.08-7,780,264.40

Finding the Fourth Proportional to 19,300,742.52, 28,956,717.08 and 7,780,264.40

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Solution

The fourth proportional to 19,300,742.52, 28,956,717.08 and 7,780,264.40 is: 11,672,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300,742.52 : 28,956,717.08 = 7,780,264.40 : x
  2. Step 2: Convert to fraction form
    19,300,742.52/28,956,717.08 = 7,780,264.40/x
  3. Step 3: Cross multiply
    19,300,742.52x = 28,956,717.08 × 7,780,264.40
  4. Step 4: Simplify right side
    19,300,742.52x = 225,290,914,854,711.03
  5. Step 5: Solve for x
    x = 225,290,914,854,711.03/19,300,742.52
  6. Step 6: Final answer
    x = 11,672,655.32

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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.