Home / 70,167,789.13-105,243,642.28-18,357,391.53

Finding the Fourth Proportional to 70,167,789.13, 105,243,642.28 and 18,357,391.53

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Solution

The fourth proportional to 70,167,789.13, 105,243,642.28 and 18,357,391.53 is: 27,533,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167,789.13 : 105,243,642.28 = 18,357,391.53 : x
  2. Step 2: Convert to fraction form
    70,167,789.13/105,243,642.28 = 18,357,391.53/x
  3. Step 3: Cross multiply
    70,167,789.13x = 105,243,642.28 × 18,357,391.53
  4. Step 4: Simplify right side
    70,167,789.13x = 1,931,998,747,377,222
  5. Step 5: Solve for x
    x = 1,931,998,747,377,222/70,167,789.13
  6. Step 6: Final answer
    x = 27,533,983.49

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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.