Home / 74,358,688.80-111,538,033.20-57,140,000.40

Finding the Fourth Proportional to 74,358,688.80, 111,538,033.20 and 57,140,000.40

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Solution

The fourth proportional to 74,358,688.80, 111,538,033.20 and 57,140,000.40 is: 85,710,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,358,688.80 : 111,538,033.20 = 57,140,000.40 : x
  2. Step 2: Convert to fraction form
    74,358,688.80/111,538,033.20 = 57,140,000.40/x
  3. Step 3: Cross multiply
    74,358,688.80x = 111,538,033.20 × 57,140,000.40
  4. Step 4: Simplify right side
    74,358,688.80x = 6,373,283,261,663,213
  5. Step 5: Solve for x
    x = 6,373,283,261,663,213/74,358,688.80
  6. Step 6: Final answer
    x = 85,710,000.60

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1.5x scale

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.