Home / 121,681,176-167,920,022.88-70,172,952

Finding the Fourth Proportional to 121,681,176, 167,920,022.88 and 70,172,952

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Solution

The fourth proportional to 121,681,176, 167,920,022.88 and 70,172,952 is: 96,838,673.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,681,176 : 167,920,022.88 = 70,172,952 : x
  2. Step 2: Convert to fraction form
    121,681,176/167,920,022.88 = 70,172,952/x
  3. Step 3: Cross multiply
    121,681,176x = 167,920,022.88 × 70,172,952
  4. Step 4: Simplify right side
    121,681,176x = 11,783,443,705,397,142
  5. Step 5: Solve for x
    x = 11,783,443,705,397,142/121,681,176
  6. Step 6: Final answer
    x = 96,838,673.76

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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.