Home / 121,461,810.12-167,592,532.82-71,877,367.91

Finding the Fourth Proportional to 121,461,810.12, 167,592,532.82 and 71,877,367.91

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Solution

The fourth proportional to 121,461,810.12, 167,592,532.82 and 71,877,367.91 is: 99,176,112.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461,810.12 : 167,592,532.82 = 71,877,367.91 : x
  2. Step 2: Convert to fraction form
    121,461,810.12/167,592,532.82 = 71,877,367.91/x
  3. Step 3: Cross multiply
    121,461,810.12x = 167,592,532.82 × 71,877,367.91
  4. Step 4: Simplify right side
    121,461,810.12x = 12,046,110,140,531,484
  5. Step 5: Solve for x
    x = 12,046,110,140,531,484/121,461,810.12
  6. Step 6: Final answer
    x = 99,176,112.46

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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.