Home / 1,031,543,138.44-1,423,516,178.06-561,639,069.64

Finding the Fourth Proportional to 1,031,543,138.44, 1,423,516,178.06 and 561,639,069.64

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Solution

The fourth proportional to 1,031,543,138.44, 1,423,516,178.06 and 561,639,069.64 is: 775,054,645.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,543,138.44 : 1,423,516,178.06 = 561,639,069.64 : x
  2. Step 2: Convert to fraction form
    1,031,543,138.44/1,423,516,178.06 = 561,639,069.64/x
  3. Step 3: Cross multiply
    1,031,543,138.44x = 1,423,516,178.06 × 561,639,069.64
  4. Step 4: Simplify right side
    1,031,543,138.44x = 799,502,301,863,106,944
  5. Step 5: Solve for x
    x = 799,502,301,863,106,944/1,031,543,138.44
  6. Step 6: Final answer
    x = 775,054,645.87

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Double scale
Find fourth proportional to 1,031,543,139.44, 1,423,516,179.44 and 561,639,070.64
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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.