Home / 138,859,009.80-208,288,514.70-116,352,155.40

Finding the Fourth Proportional to 138,859,009.80, 208,288,514.70 and 116,352,155.40

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Solution

The fourth proportional to 138,859,009.80, 208,288,514.70 and 116,352,155.40 is: 174,528,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,859,009.80 : 208,288,514.70 = 116,352,155.40 : x
  2. Step 2: Convert to fraction form
    138,859,009.80/208,288,514.70 = 116,352,155.40/x
  3. Step 3: Cross multiply
    138,859,009.80x = 208,288,514.70 × 116,352,155.40
  4. Step 4: Simplify right side
    138,859,009.80x = 24,234,817,630,409,584
  5. Step 5: Solve for x
    x = 24,234,817,630,409,584/138,859,009.80
  6. Step 6: Final answer
    x = 174,528,233.10

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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.