Home / 128,547,005.70-192,820,508.55-122,169,713.70

Finding the Fourth Proportional to 128,547,005.70, 192,820,508.55 and 122,169,713.70

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Solution

The fourth proportional to 128,547,005.70, 192,820,508.55 and 122,169,713.70 is: 183,254,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547,005.70 : 192,820,508.55 = 122,169,713.70 : x
  2. Step 2: Convert to fraction form
    128,547,005.70/192,820,508.55 = 122,169,713.70/x
  3. Step 3: Cross multiply
    128,547,005.70x = 192,820,508.55 × 122,169,713.70
  4. Step 4: Simplify right side
    128,547,005.70x = 23,556,826,325,041,904
  5. Step 5: Solve for x
    x = 23,556,826,325,041,904/128,547,005.70
  6. Step 6: Final answer
    x = 183,254,570.55

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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.