Home / 86,920,129,837.70-130,380,194,756.55-86,369,131,808.90

Finding the Fourth Proportional to 86,920,129,837.70, 130,380,194,756.55 and 86,369,131,808.90

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Solution

The fourth proportional to 86,920,129,837.70, 130,380,194,756.55 and 86,369,131,808.90 is: 129,553,697,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,920,129,837.70 : 130,380,194,756.55 = 86,369,131,808.90 : x
  2. Step 2: Convert to fraction form
    86,920,129,837.70/130,380,194,756.55 = 86,369,131,808.90/x
  3. Step 3: Cross multiply
    86,920,129,837.70x = 130,380,194,756.55 × 86,369,131,808.90
  4. Step 4: Simplify right side
    86,920,129,837.70x = 11,260,824,226,198,519,283,712
  5. Step 5: Solve for x
    x = 11,260,824,226,198,519,283,712/86,920,129,837.70
  6. Step 6: Final answer
    x = 129,553,697,713.35

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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.