Home / 66,012,948.80-99,019,423.20-60,339,579.20

Finding the Fourth Proportional to 66,012,948.80, 99,019,423.20 and 60,339,579.20

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Solution

The fourth proportional to 66,012,948.80, 99,019,423.20 and 60,339,579.20 is: 90,509,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,012,948.80 : 99,019,423.20 = 60,339,579.20 : x
  2. Step 2: Convert to fraction form
    66,012,948.80/99,019,423.20 = 60,339,579.20/x
  3. Step 3: Cross multiply
    66,012,948.80x = 99,019,423.20 × 60,339,579.20
  4. Step 4: Simplify right side
    66,012,948.80x = 5,974,790,328,514,718
  5. Step 5: Solve for x
    x = 5,974,790,328,514,718/66,012,948.80
  6. Step 6: Final answer
    x = 90,509,368.80

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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.