Home / 198,712,779.46-298,069,099.03-53,142,557.44

Finding the Fourth Proportional to 198,712,779.46, 298,069,099.03 and 53,142,557.44

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Solution

The fourth proportional to 198,712,779.46, 298,069,099.03 and 53,142,557.44 is: 79,713,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,712,779.46 : 298,069,099.03 = 53,142,557.44 : x
  2. Step 2: Convert to fraction form
    198,712,779.46/298,069,099.03 = 53,142,557.44/x
  3. Step 3: Cross multiply
    198,712,779.46x = 298,069,099.03 × 53,142,557.44
  4. Step 4: Simplify right side
    198,712,779.46x = 15,840,154,216,170,958
  5. Step 5: Solve for x
    x = 15,840,154,216,170,958/198,712,779.46
  6. Step 6: Final answer
    x = 79,713,817.40

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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.