Home / 70,167,788.13-105,243,640.79-18,357,390.53

Finding the Fourth Proportional to 70,167,788.13, 105,243,640.79 and 18,357,390.53

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Solution

The fourth proportional to 70,167,788.13, 105,243,640.79 and 18,357,390.53 is: 27,533,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167,788.13 : 105,243,640.79 = 18,357,390.53 : x
  2. Step 2: Convert to fraction form
    70,167,788.13/105,243,640.79 = 18,357,390.53/x
  3. Step 3: Cross multiply
    70,167,788.13x = 105,243,640.79 × 18,357,390.53
  4. Step 4: Simplify right side
    70,167,788.13x = 1,931,998,614,163,062.25
  5. Step 5: Solve for x
    x = 1,931,998,614,163,062.25/70,167,788.13
  6. Step 6: Final answer
    x = 27,533,981.98

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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.