Home / 99,312,768,001.20-148,969,152,001.80-52,131,010,868.40

Finding the Fourth Proportional to 99,312,768,001.20, 148,969,152,001.80 and 52,131,010,868.40

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Solution

The fourth proportional to 99,312,768,001.20, 148,969,152,001.80 and 52,131,010,868.40 is: 78,196,516,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,312,768,001.20 : 148,969,152,001.80 = 52,131,010,868.40 : x
  2. Step 2: Convert to fraction form
    99,312,768,001.20/148,969,152,001.80 = 52,131,010,868.40/x
  3. Step 3: Cross multiply
    99,312,768,001.20x = 148,969,152,001.80 × 52,131,010,868.40
  4. Step 4: Simplify right side
    99,312,768,001.20x = 7,765,912,482,062,166,654,976
  5. Step 5: Solve for x
    x = 7,765,912,482,062,166,654,976/99,312,768,001.20
  6. Step 6: Final answer
    x = 78,196,516,302.60

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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.