Home / 393,127,412.12-542,527,184.01-216,926,754.35

Finding the Fourth Proportional to 393,127,412.12, 542,527,184.01 and 216,926,754.35

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Solution

The fourth proportional to 393,127,412.12, 542,527,184.01 and 216,926,754.35 is: 299,365,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,127,412.12 : 542,527,184.01 = 216,926,754.35 : x
  2. Step 2: Convert to fraction form
    393,127,412.12/542,527,184.01 = 216,926,754.35/x
  3. Step 3: Cross multiply
    393,127,412.12x = 542,527,184.01 × 216,926,754.35
  4. Step 4: Simplify right side
    393,127,412.12x = 117,688,661,175,081,712
  5. Step 5: Solve for x
    x = 117,688,661,175,081,712/393,127,412.12
  6. Step 6: Final answer
    x = 299,365,186.83

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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.