Home / 142,543,882.62-196,710,559.70-77,353,786.62

Finding the Fourth Proportional to 142,543,882.62, 196,710,559.70 and 77,353,786.62

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Solution

The fourth proportional to 142,543,882.62, 196,710,559.70 and 77,353,786.62 is: 106,748,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,543,882.62 : 196,710,559.70 = 77,353,786.62 : x
  2. Step 2: Convert to fraction form
    142,543,882.62/196,710,559.70 = 77,353,786.62/x
  3. Step 3: Cross multiply
    142,543,882.62x = 196,710,559.70 × 77,353,786.62
  4. Step 4: Simplify right side
    142,543,882.62x = 15,216,306,660,547,802
  5. Step 5: Solve for x
    x = 15,216,306,660,547,802/142,543,882.62
  6. Step 6: Final answer
    x = 106,748,226.45

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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.