Home / 78,146,365.71-117,236,475.95-23,554,384.23

Finding the Fourth Proportional to 78,146,365.71, 117,236,475.95 and 23,554,384.23

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Solution

The fourth proportional to 78,146,365.71, 117,236,475.95 and 23,554,384.23 is: 35,336,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,146,365.71 : 117,236,475.95 = 23,554,384.23 : x
  2. Step 2: Convert to fraction form
    78,146,365.71/117,236,475.95 = 23,554,384.23/x
  3. Step 3: Cross multiply
    78,146,365.71x = 117,236,475.95 × 23,554,384.23
  4. Step 4: Simplify right side
    78,146,365.71x = 2,761,433,000,179,682
  5. Step 5: Solve for x
    x = 2,761,433,000,179,682/78,146,365.71
  6. Step 6: Final answer
    x = 35,336,678.49

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1.5x scale

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.