Home / 198,148,877.40-297,223,316.10-120,664,779.60

Finding the Fourth Proportional to 198,148,877.40, 297,223,316.10 and 120,664,779.60

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Solution

The fourth proportional to 198,148,877.40, 297,223,316.10 and 120,664,779.60 is: 180,997,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,148,877.40 : 297,223,316.10 = 120,664,779.60 : x
  2. Step 2: Convert to fraction form
    198,148,877.40/297,223,316.10 = 120,664,779.60/x
  3. Step 3: Cross multiply
    198,148,877.40x = 297,223,316.10 × 120,664,779.60
  4. Step 4: Simplify right side
    198,148,877.40x = 35,864,385,929,187,632
  5. Step 5: Solve for x
    x = 35,864,385,929,187,632/198,148,877.40
  6. Step 6: Final answer
    x = 180,997,169.40

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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.