Home / 75,287,627.40-112,931,441.10-67,068,006.60

Finding the Fourth Proportional to 75,287,627.40, 112,931,441.10 and 67,068,006.60

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Solution

The fourth proportional to 75,287,627.40, 112,931,441.10 and 67,068,006.60 is: 100,602,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,287,627.40 : 112,931,441.10 = 67,068,006.60 : x
  2. Step 2: Convert to fraction form
    75,287,627.40/112,931,441.10 = 67,068,006.60/x
  3. Step 3: Cross multiply
    75,287,627.40x = 112,931,441.10 × 67,068,006.60
  4. Step 4: Simplify right side
    75,287,627.40x = 7,574,086,637,042,311
  5. Step 5: Solve for x
    x = 7,574,086,637,042,311/75,287,627.40
  6. Step 6: Final answer
    x = 100,602,009.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.