Home / 86,239,191,111.30-129,243,156,388.70-67,117,891,836.90

Finding the Fourth Proportional to 86,239,191,111.30, 129,243,156,388.70 and 67,117,891,836.90

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Solution

The fourth proportional to 86,239,191,111.30, 129,243,156,388.70 and 67,117,891,836.90 is: 100,586,845,486.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,239,191,111.30 : 129,243,156,388.70 = 67,117,891,836.90 : x
  2. Step 2: Convert to fraction form
    86,239,191,111.30/129,243,156,388.70 = 67,117,891,836.90/x
  3. Step 3: Cross multiply
    86,239,191,111.30x = 129,243,156,388.70 × 67,117,891,836.90
  4. Step 4: Simplify right side
    86,239,191,111.30x = 8,674,528,191,156,318,109,696
  5. Step 5: Solve for x
    x = 8,674,528,191,156,318,109,696/86,239,191,111.30
  6. Step 6: Final answer
    x = 100,586,845,486.07

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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.