Home / 128,547,008.20-192,820,512.30-122,169,716.20

Finding the Fourth Proportional to 128,547,008.20, 192,820,512.30 and 122,169,716.20

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Solution

The fourth proportional to 128,547,008.20, 192,820,512.30 and 122,169,716.20 is: 183,254,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547,008.20 : 192,820,512.30 = 122,169,716.20 : x
  2. Step 2: Convert to fraction form
    128,547,008.20/192,820,512.30 = 122,169,716.20/x
  3. Step 3: Cross multiply
    128,547,008.20x = 192,820,512.30 × 122,169,716.20
  4. Step 4: Simplify right side
    128,547,008.20x = 23,556,827,265,229,612
  5. Step 5: Solve for x
    x = 23,556,827,265,229,612/128,547,008.20
  6. Step 6: Final answer
    x = 183,254,574.30

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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.