Home / 142,600,826,145.75-196,793,859,496.44-78,373,827,012.13

Finding the Fourth Proportional to 142,600,826,145.75, 196,793,859,496.44 and 78,373,827,012.13

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Solution

The fourth proportional to 142,600,826,145.75, 196,793,859,496.44 and 78,373,827,012.13 is: 108,158,475,081.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,600,826,145.75 : 196,793,859,496.44 = 78,373,827,012.13 : x
  2. Step 2: Convert to fraction form
    142,600,826,145.75/196,793,859,496.44 = 78,373,827,012.13/x
  3. Step 3: Cross multiply
    142,600,826,145.75x = 196,793,859,496.44 × 78,373,827,012.13
  4. Step 4: Simplify right side
    142,600,826,145.75x = 15,423,487,901,223,406,796,800
  5. Step 5: Solve for x
    x = 15,423,487,901,223,406,796,800/142,600,826,145.75
  6. Step 6: Final answer
    x = 108,158,475,081.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.