Home / 287,544,663.06-431,316,967.17-69,195,031.38

Finding the Fourth Proportional to 287,544,663.06, 431,316,967.17 and 69,195,031.38

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Solution

The fourth proportional to 287,544,663.06, 431,316,967.17 and 69,195,031.38 is: 103,792,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,544,663.06 : 431,316,967.17 = 69,195,031.38 : x
  2. Step 2: Convert to fraction form
    287,544,663.06/431,316,967.17 = 69,195,031.38/x
  3. Step 3: Cross multiply
    287,544,663.06x = 431,316,967.17 × 69,195,031.38
  4. Step 4: Simplify right side
    287,544,663.06x = 29,844,991,078,054,580
  5. Step 5: Solve for x
    x = 29,844,991,078,054,580/287,544,663.06
  6. Step 6: Final answer
    x = 103,792,540.47

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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.