Home / 288,463,081.18-432,690,842.31-70,112,788.96

Finding the Fourth Proportional to 288,463,081.18, 432,690,842.31 and 70,112,788.96

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Solution

The fourth proportional to 288,463,081.18, 432,690,842.31 and 70,112,788.96 is: 105,168,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,463,081.18 : 432,690,842.31 = 70,112,788.96 : x
  2. Step 2: Convert to fraction form
    288,463,081.18/432,690,842.31 = 70,112,788.96/x
  3. Step 3: Cross multiply
    288,463,081.18x = 432,690,842.31 × 70,112,788.96
  4. Step 4: Simplify right side
    288,463,081.18x = 30,337,161,711,805,668
  5. Step 5: Solve for x
    x = 30,337,161,711,805,668/288,463,081.18
  6. Step 6: Final answer
    x = 105,168,264.82

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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.