Home / 486,915,618.96-671,551,752.24-428,052,426.48

Finding the Fourth Proportional to 486,915,618.96, 671,551,752.24 and 428,052,426.48

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Solution

The fourth proportional to 486,915,618.96, 671,551,752.24 and 428,052,426.48 is: 590,367,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,915,618.96 : 671,551,752.24 = 428,052,426.48 : x
  2. Step 2: Convert to fraction form
    486,915,618.96/671,551,752.24 = 428,052,426.48/x
  3. Step 3: Cross multiply
    486,915,618.96x = 671,551,752.24 × 428,052,426.48
  4. Step 4: Simplify right side
    486,915,618.96x = 287,459,357,053,227,808
  5. Step 5: Solve for x
    x = 287,459,357,053,227,808/486,915,618.96
  6. Step 6: Final answer
    x = 590,367,911.52

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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.