Home / 824,402,964.70-1,236,604,447.05-279,144,498.70

Finding the Fourth Proportional to 824,402,964.70, 1,236,604,447.05 and 279,144,498.70

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Solution

The fourth proportional to 824,402,964.70, 1,236,604,447.05 and 279,144,498.70 is: 418,716,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,402,964.70 : 1,236,604,447.05 = 279,144,498.70 : x
  2. Step 2: Convert to fraction form
    824,402,964.70/1,236,604,447.05 = 279,144,498.70/x
  3. Step 3: Cross multiply
    824,402,964.70x = 1,236,604,447.05 × 279,144,498.70
  4. Step 4: Simplify right side
    824,402,964.70x = 345,191,328,461,962,944
  5. Step 5: Solve for x
    x = 345,191,328,461,962,944/824,402,964.70
  6. Step 6: Final answer
    x = 418,716,748.05

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Double scale
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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.