Home / 138,606,739,383.86-191,278,423,434.91-76,808,341,310.10

Finding the Fourth Proportional to 138,606,739,383.86, 191,278,423,434.91 and 76,808,341,310.10

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Solution

The fourth proportional to 138,606,739,383.86, 191,278,423,434.91 and 76,808,341,310.10 is: 105,996,133,360.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,606,739,383.86 : 191,278,423,434.91 = 76,808,341,310.10 : x
  2. Step 2: Convert to fraction form
    138,606,739,383.86/191,278,423,434.91 = 76,808,341,310.10/x
  3. Step 3: Cross multiply
    138,606,739,383.86x = 191,278,423,434.91 × 76,808,341,310.10
  4. Step 4: Simplify right side
    138,606,739,383.86x = 14,691,778,432,446,398,201,856
  5. Step 5: Solve for x
    x = 14,691,778,432,446,398,201,856/138,606,739,383.86
  6. Step 6: Final answer
    x = 105,996,133,360.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.