Home / 1,107,386,886.80-1,661,718,059.40-417,789,045.20

Finding the Fourth Proportional to 1,107,386,886.80, 1,661,718,059.40 and 417,789,045.20

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Solution

The fourth proportional to 1,107,386,886.80, 1,661,718,059.40 and 417,789,045.20 is: 626,924,166.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,386,886.80 : 1,661,718,059.40 = 417,789,045.20 : x
  2. Step 2: Convert to fraction form
    1,107,386,886.80/1,661,718,059.40 = 417,789,045.20/x
  3. Step 3: Cross multiply
    1,107,386,886.80x = 1,661,718,059.40 × 417,789,045.20
  4. Step 4: Simplify right side
    1,107,386,886.80x = 694,247,601,428,322,944
  5. Step 5: Solve for x
    x = 694,247,601,428,322,944/1,107,386,886.80
  6. Step 6: Final answer
    x = 626,924,166.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.