Home / 19,787,878.80-29,681,818.20-16,386,656.40

Finding the Fourth Proportional to 19,787,878.80, 29,681,818.20 and 16,386,656.40

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Solution

The fourth proportional to 19,787,878.80, 29,681,818.20 and 16,386,656.40 is: 24,579,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787,878.80 : 29,681,818.20 = 16,386,656.40 : x
  2. Step 2: Convert to fraction form
    19,787,878.80/29,681,818.20 = 16,386,656.40/x
  3. Step 3: Cross multiply
    19,787,878.80x = 29,681,818.20 × 16,386,656.40
  4. Step 4: Simplify right side
    19,787,878.80x = 486,385,756,170,666.50
  5. Step 5: Solve for x
    x = 486,385,756,170,666.50/19,787,878.80
  6. Step 6: Final answer
    x = 24,579,984.60

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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.