Home / 7,913,985.30-10,921,641.05-4,381,781.91

Finding the Fourth Proportional to 7,913,985.30, 10,921,641.05 and 4,381,781.91

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Solution

The fourth proportional to 7,913,985.30, 10,921,641.05 and 4,381,781.91 is: 6,047,048.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913,985.30 : 10,921,641.05 = 4,381,781.91 : x
  2. Step 2: Convert to fraction form
    7,913,985.30/10,921,641.05 = 4,381,781.91/x
  3. Step 3: Cross multiply
    7,913,985.30x = 10,921,641.05 × 4,381,781.91
  4. Step 4: Simplify right side
    7,913,985.30x = 47,856,249,180,403.41
  5. Step 5: Solve for x
    x = 47,856,249,180,403.41/7,913,985.30
  6. Step 6: Final answer
    x = 6,047,048.03

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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.