Home / 143,510,820,523.46-198,045,011,769.60-77,516,994,911.91

Finding the Fourth Proportional to 143,510,820,523.46, 198,045,011,769.60 and 77,516,994,911.91

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Solution

The fourth proportional to 143,510,820,523.46, 198,045,011,769.60 and 77,516,994,911.91 is: 106,973,495,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,510,820,523.46 : 198,045,011,769.60 = 77,516,994,911.91 : x
  2. Step 2: Convert to fraction form
    143,510,820,523.46/198,045,011,769.60 = 77,516,994,911.91/x
  3. Step 3: Cross multiply
    143,510,820,523.46x = 198,045,011,769.60 × 77,516,994,911.91
  4. Step 4: Simplify right side
    143,510,820,523.46x = 15,351,854,169,673,833,644,032
  5. Step 5: Solve for x
    x = 15,351,854,169,673,833,644,032/143,510,820,523.46
  6. Step 6: Final answer
    x = 106,973,495,891.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.