Home / 86,270,168.91-129,406,397.40-28,762,458.51

Finding the Fourth Proportional to 86,270,168.91, 129,406,397.40 and 28,762,458.51

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Solution

The fourth proportional to 86,270,168.91, 129,406,397.40 and 28,762,458.51 is: 43,144,069.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,270,168.91 : 129,406,397.40 = 28,762,458.51 : x
  2. Step 2: Convert to fraction form
    86,270,168.91/129,406,397.40 = 28,762,458.51/x
  3. Step 3: Cross multiply
    86,270,168.91x = 129,406,397.40 × 28,762,458.51
  4. Step 4: Simplify right side
    86,270,168.91x = 3,722,046,136,146,072.50
  5. Step 5: Solve for x
    x = 3,722,046,136,146,072.50/86,270,168.91
  6. Step 6: Final answer
    x = 43,144,069.19

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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.