Home / 66,988,888.32-92,433,611.52-39,492,135.84

Finding the Fourth Proportional to 66,988,888.32, 92,433,611.52 and 39,492,135.84

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Solution

The fourth proportional to 66,988,888.32, 92,433,611.52 and 39,492,135.84 is: 54,492,630.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988,888.32 : 92,433,611.52 = 39,492,135.84 : x
  2. Step 2: Convert to fraction form
    66,988,888.32/92,433,611.52 = 39,492,135.84/x
  3. Step 3: Cross multiply
    66,988,888.32x = 92,433,611.52 × 39,492,135.84
  4. Step 4: Simplify right side
    66,988,888.32x = 3,650,400,742,329,629
  5. Step 5: Solve for x
    x = 3,650,400,742,329,629/66,988,888.32
  6. Step 6: Final answer
    x = 54,492,630.55

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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.