Home / 31,439,561.96-43,386,151.06-17,688,493.28

Finding the Fourth Proportional to 31,439,561.96, 43,386,151.06 and 17,688,493.28

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Solution

The fourth proportional to 31,439,561.96, 43,386,151.06 and 17,688,493.28 is: 24,409,870.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439,561.96 : 43,386,151.06 = 17,688,493.28 : x
  2. Step 2: Convert to fraction form
    31,439,561.96/43,386,151.06 = 17,688,493.28/x
  3. Step 3: Cross multiply
    31,439,561.96x = 43,386,151.06 × 17,688,493.28
  4. Step 4: Simplify right side
    31,439,561.96x = 767,435,641,469,875
  5. Step 5: Solve for x
    x = 767,435,641,469,875/31,439,561.96
  6. Step 6: Final answer
    x = 24,409,870.67

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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.