Home / 31,478,653.03-43,440,631.15-18,250,400.71

Finding the Fourth Proportional to 31,478,653.03, 43,440,631.15 and 18,250,400.71

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Solution

The fourth proportional to 31,478,653.03, 43,440,631.15 and 18,250,400.71 is: 25,185,605.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478,653.03 : 43,440,631.15 = 18,250,400.71 : x
  2. Step 2: Convert to fraction form
    31,478,653.03/43,440,631.15 = 18,250,400.71/x
  3. Step 3: Cross multiply
    31,478,653.03x = 43,440,631.15 × 18,250,400.71
  4. Step 4: Simplify right side
    31,478,653.03x = 792,808,925,428,580.50
  5. Step 5: Solve for x
    x = 792,808,925,428,580.50/31,478,653.03
  6. Step 6: Final answer
    x = 25,185,605.14

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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.