Home / 992,389,959.80-1,488,584,939.70-409,930,623.80

Finding the Fourth Proportional to 992,389,959.80, 1,488,584,939.70 and 409,930,623.80

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Solution

The fourth proportional to 992,389,959.80, 1,488,584,939.70 and 409,930,623.80 is: 614,895,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,389,959.80 : 1,488,584,939.70 = 409,930,623.80 : x
  2. Step 2: Convert to fraction form
    992,389,959.80/1,488,584,939.70 = 409,930,623.80/x
  3. Step 3: Cross multiply
    992,389,959.80x = 1,488,584,939.70 × 409,930,623.80
  4. Step 4: Simplify right side
    992,389,959.80x = 610,216,552,910,506,368
  5. Step 5: Solve for x
    x = 610,216,552,910,506,368/992,389,959.80
  6. Step 6: Final answer
    x = 614,895,935.70

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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.