Home / 10,520,856.61-14,528,810.27-9,947,678.87

Finding the Fourth Proportional to 10,520,856.61, 14,528,810.27 and 9,947,678.87

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Solution

The fourth proportional to 10,520,856.61, 14,528,810.27 and 9,947,678.87 is: 13,737,278.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520,856.61 : 14,528,810.27 = 9,947,678.87 : x
  2. Step 2: Convert to fraction form
    10,520,856.61/14,528,810.27 = 9,947,678.87/x
  3. Step 3: Cross multiply
    10,520,856.61x = 14,528,810.27 × 9,947,678.87
  4. Step 4: Simplify right side
    10,520,856.61x = 144,527,938,881,343.16
  5. Step 5: Solve for x
    x = 144,527,938,881,343.16/10,520,856.61
  6. Step 6: Final answer
    x = 13,737,278.65

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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.