Home / 13,681,934.86-18,880,779.08-7,486,956.86

Finding the Fourth Proportional to 13,681,934.86, 18,880,779.08 and 7,486,956.86

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Solution

The fourth proportional to 13,681,934.86, 18,880,779.08 and 7,486,956.86 is: 10,331,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681,934.86 : 18,880,779.08 = 7,486,956.86 : x
  2. Step 2: Convert to fraction form
    13,681,934.86/18,880,779.08 = 7,486,956.86/x
  3. Step 3: Cross multiply
    13,681,934.86x = 18,880,779.08 × 7,486,956.86
  4. Step 4: Simplify right side
    13,681,934.86x = 141,359,578,455,150.47
  5. Step 5: Solve for x
    x = 141,359,578,455,150.47/13,681,934.86
  6. Step 6: Final answer
    x = 10,331,841.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.