Home / 558,974,101.09-771,352,775.31-308,077,728.61

Finding the Fourth Proportional to 558,974,101.09, 771,352,775.31 and 308,077,728.61

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Solution

The fourth proportional to 558,974,101.09, 771,352,775.31 and 308,077,728.61 is: 425,129,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,974,101.09 : 771,352,775.31 = 308,077,728.61 : x
  2. Step 2: Convert to fraction form
    558,974,101.09/771,352,775.31 = 308,077,728.61/x
  3. Step 3: Cross multiply
    558,974,101.09x = 771,352,775.31 × 308,077,728.61
  4. Step 4: Simplify right side
    558,974,101.09x = 237,636,610,973,751,424
  5. Step 5: Solve for x
    x = 237,636,610,973,751,424/558,974,101.09
  6. Step 6: Final answer
    x = 425,129,913.02

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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.