Home / 128,547,010.20-192,820,515.30-122,169,718.20

Finding the Fourth Proportional to 128,547,010.20, 192,820,515.30 and 122,169,718.20

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Solution

The fourth proportional to 128,547,010.20, 192,820,515.30 and 122,169,718.20 is: 183,254,577.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547,010.20 : 192,820,515.30 = 122,169,718.20 : x
  2. Step 2: Convert to fraction form
    128,547,010.20/192,820,515.30 = 122,169,718.20/x
  3. Step 3: Cross multiply
    128,547,010.20x = 192,820,515.30 × 122,169,718.20
  4. Step 4: Simplify right side
    128,547,010.20x = 23,556,828,017,379,792
  5. Step 5: Solve for x
    x = 23,556,828,017,379,792/128,547,010.20
  6. Step 6: Final answer
    x = 183,254,577.30

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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.