Home / 72,216,756.03-99,650,715.66-40,428,666.28

Finding the Fourth Proportional to 72,216,756.03, 99,650,715.66 and 40,428,666.28

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Solution

The fourth proportional to 72,216,756.03, 99,650,715.66 and 40,428,666.28 is: 55,786,852.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,216,756.03 : 99,650,715.66 = 40,428,666.28 : x
  2. Step 2: Convert to fraction form
    72,216,756.03/99,650,715.66 = 40,428,666.28/x
  3. Step 3: Cross multiply
    72,216,756.03x = 99,650,715.66 × 40,428,666.28
  4. Step 4: Simplify right side
    72,216,756.03x = 4,028,745,527,718,525
  5. Step 5: Solve for x
    x = 4,028,745,527,718,525/72,216,756.03
  6. Step 6: Final answer
    x = 55,786,852.65

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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.