Home / 52,156,977.20-78,235,465.80-51,779,063.60

Finding the Fourth Proportional to 52,156,977.20, 78,235,465.80 and 51,779,063.60

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Solution

The fourth proportional to 52,156,977.20, 78,235,465.80 and 51,779,063.60 is: 77,668,595.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,156,977.20 : 78,235,465.80 = 51,779,063.60 : x
  2. Step 2: Convert to fraction form
    52,156,977.20/78,235,465.80 = 51,779,063.60/x
  3. Step 3: Cross multiply
    52,156,977.20x = 78,235,465.80 × 51,779,063.60
  4. Step 4: Simplify right side
    52,156,977.20x = 4,050,959,159,433,825
  5. Step 5: Solve for x
    x = 4,050,959,159,433,825/52,156,977.20
  6. Step 6: Final answer
    x = 77,668,595.40

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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.