Home / 824,561,719.80-1,236,842,579.70-497,406,640.20

Finding the Fourth Proportional to 824,561,719.80, 1,236,842,579.70 and 497,406,640.20

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Solution

The fourth proportional to 824,561,719.80, 1,236,842,579.70 and 497,406,640.20 is: 746,109,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,561,719.80 : 1,236,842,579.70 = 497,406,640.20 : x
  2. Step 2: Convert to fraction form
    824,561,719.80/1,236,842,579.70 = 497,406,640.20/x
  3. Step 3: Cross multiply
    824,561,719.80x = 1,236,842,579.70 × 497,406,640.20
  4. Step 4: Simplify right side
    824,561,719.80x = 615,213,712,024,877,696
  5. Step 5: Solve for x
    x = 615,213,712,024,877,696/824,561,719.80
  6. Step 6: Final answer
    x = 746,109,960.30

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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.