Home / 19,371,813.92-28,989,472.38-12,088,700.52

Finding the Fourth Proportional to 19,371,813.92, 28,989,472.38 and 12,088,700.52

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Solution

The fourth proportional to 19,371,813.92, 28,989,472.38 and 12,088,700.52 is: 18,090,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,371,813.92 : 28,989,472.38 = 12,088,700.52 : x
  2. Step 2: Convert to fraction form
    19,371,813.92/28,989,472.38 = 12,088,700.52/x
  3. Step 3: Cross multiply
    19,371,813.92x = 28,989,472.38 × 12,088,700.52
  4. Step 4: Simplify right side
    19,371,813.92x = 350,445,049,680,588.44
  5. Step 5: Solve for x
    x = 350,445,049,680,588.44/19,371,813.92
  6. Step 6: Final answer
    x = 18,090,461.28

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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.