Home / 121,281,915.58-167,369,043.90-69,075,809.08

Finding the Fourth Proportional to 121,281,915.58, 167,369,043.90 and 69,075,809.08

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Solution

The fourth proportional to 121,281,915.58, 167,369,043.90 and 69,075,809.08 is: 95,324,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,281,915.58 : 167,369,043.90 = 69,075,809.08 : x
  2. Step 2: Convert to fraction form
    121,281,915.58/167,369,043.90 = 69,075,809.08/x
  3. Step 3: Cross multiply
    121,281,915.58x = 167,369,043.90 × 69,075,809.08
  4. Step 4: Simplify right side
    121,281,915.58x = 11,561,152,122,338,538
  5. Step 5: Solve for x
    x = 11,561,152,122,338,538/121,281,915.58
  6. Step 6: Final answer
    x = 95,324,616.76

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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.