Home / 143,342,000.13-197,828,753.72-81,471,638.91

Finding the Fourth Proportional to 143,342,000.13, 197,828,753.72 and 81,471,638.91

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Solution

The fourth proportional to 143,342,000.13, 197,828,753.72 and 81,471,638.91 is: 112,440,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,342,000.13 : 197,828,753.72 = 81,471,638.91 : x
  2. Step 2: Convert to fraction form
    143,342,000.13/197,828,753.72 = 81,471,638.91/x
  3. Step 3: Cross multiply
    143,342,000.13x = 197,828,753.72 × 81,471,638.91
  4. Step 4: Simplify right side
    143,342,000.13x = 16,117,432,788,683,800
  5. Step 5: Solve for x
    x = 16,117,432,788,683,800/143,342,000.13
  6. Step 6: Final answer
    x = 112,440,406.68

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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.