Home / 257,540,834,957.52-386,368,866,101.70-78,480,835,714.38

Finding the Fourth Proportional to 257,540,834,957.52, 386,368,866,101.70 and 78,480,835,714.38

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Solution

The fourth proportional to 257,540,834,957.52, 386,368,866,101.70 and 78,480,835,714.38 is: 117,738,810,277.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,540,834,957.52 : 386,368,866,101.70 = 78,480,835,714.38 : x
  2. Step 2: Convert to fraction form
    257,540,834,957.52/386,368,866,101.70 = 78,480,835,714.38/x
  3. Step 3: Cross multiply
    257,540,834,957.52x = 386,368,866,101.70 × 78,480,835,714.38
  4. Step 4: Simplify right side
    257,540,834,957.52x = 30,322,551,505,678,803,927,040
  5. Step 5: Solve for x
    x = 30,322,551,505,678,803,927,040/257,540,834,957.52
  6. Step 6: Final answer
    x = 117,738,810,277.14

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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.