Home / 665,126,465.80-917,442,031.70-426,593,829.64

Finding the Fourth Proportional to 665,126,465.80, 917,442,031.70 and 426,593,829.64

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Solution

The fourth proportional to 665,126,465.80, 917,442,031.70 and 426,593,829.64 is: 588,422,097.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,126,465.80 : 917,442,031.70 = 426,593,829.64 : x
  2. Step 2: Convert to fraction form
    665,126,465.80/917,442,031.70 = 426,593,829.64/x
  3. Step 3: Cross multiply
    665,126,465.80x = 917,442,031.70 × 426,593,829.64
  4. Step 4: Simplify right side
    665,126,465.80x = 391,375,109,775,605,312
  5. Step 5: Solve for x
    x = 391,375,109,775,605,312/665,126,465.80
  6. Step 6: Final answer
    x = 588,422,097.00

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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.