Home / 285,087,741.92-393,421,080.48-154,707,549.92

Finding the Fourth Proportional to 285,087,741.92, 393,421,080.48 and 154,707,549.92

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Solution

The fourth proportional to 285,087,741.92, 393,421,080.48 and 154,707,549.92 is: 213,496,417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,087,741.92 : 393,421,080.48 = 154,707,549.92 : x
  2. Step 2: Convert to fraction form
    285,087,741.92/393,421,080.48 = 154,707,549.92/x
  3. Step 3: Cross multiply
    285,087,741.92x = 393,421,080.48 × 154,707,549.92
  4. Step 4: Simplify right side
    285,087,741.92x = 60,865,211,447,939,936
  5. Step 5: Solve for x
    x = 60,865,211,447,939,936/285,087,741.92
  6. Step 6: Final answer
    x = 213,496,417.06

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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.