Home / 130,899,874.65-180,643,049.15-72,164,648.67

Finding the Fourth Proportional to 130,899,874.65, 180,643,049.15 and 72,164,648.67

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Solution

The fourth proportional to 130,899,874.65, 180,643,049.15 and 72,164,648.67 is: 99,587,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,899,874.65 : 180,643,049.15 = 72,164,648.67 : x
  2. Step 2: Convert to fraction form
    130,899,874.65/180,643,049.15 = 72,164,648.67/x
  3. Step 3: Cross multiply
    130,899,874.65x = 180,643,049.15 × 72,164,648.67
  4. Step 4: Simplify right side
    130,899,874.65x = 13,036,042,176,226,470
  5. Step 5: Solve for x
    x = 13,036,042,176,226,470/130,899,874.65
  6. Step 6: Final answer
    x = 99,587,888.92

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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.