Home / 139,143,715.60-208,715,573.40-127,239,437.20

Finding the Fourth Proportional to 139,143,715.60, 208,715,573.40 and 127,239,437.20

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Solution

The fourth proportional to 139,143,715.60, 208,715,573.40 and 127,239,437.20 is: 190,859,155.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,143,715.60 : 208,715,573.40 = 127,239,437.20 : x
  2. Step 2: Convert to fraction form
    139,143,715.60/208,715,573.40 = 127,239,437.20/x
  3. Step 3: Cross multiply
    139,143,715.60x = 208,715,573.40 × 127,239,437.20
  4. Step 4: Simplify right side
    139,143,715.60x = 26,556,852,094,291,292
  5. Step 5: Solve for x
    x = 26,556,852,094,291,292/139,143,715.60
  6. Step 6: Final answer
    x = 190,859,155.80

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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.