Home / 217,547,139.66-300,205,857.06-118,425,823.71

Finding the Fourth Proportional to 217,547,139.66, 300,205,857.06 and 118,425,823.71

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Solution

The fourth proportional to 217,547,139.66, 300,205,857.06 and 118,425,823.71 is: 163,422,630.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,547,139.66 : 300,205,857.06 = 118,425,823.71 : x
  2. Step 2: Convert to fraction form
    217,547,139.66/300,205,857.06 = 118,425,823.71/x
  3. Step 3: Cross multiply
    217,547,139.66x = 300,205,857.06 × 118,425,823.71
  4. Step 4: Simplify right side
    217,547,139.66x = 35,552,125,904,897,016
  5. Step 5: Solve for x
    x = 35,552,125,904,897,016/217,547,139.66
  6. Step 6: Final answer
    x = 163,422,630.89

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1.5x scale

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.