Home / 86,619,681.40-129,945,908.90-34,808,317.32

Finding the Fourth Proportional to 86,619,681.40, 129,945,908.90 and 34,808,317.32

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Solution

The fourth proportional to 86,619,681.40, 129,945,908.90 and 34,808,317.32 is: 52,219,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,619,681.40 : 129,945,908.90 = 34,808,317.32 : x
  2. Step 2: Convert to fraction form
    86,619,681.40/129,945,908.90 = 34,808,317.32/x
  3. Step 3: Cross multiply
    86,619,681.40x = 129,945,908.90 × 34,808,317.32
  4. Step 4: Simplify right side
    86,619,681.40x = 4,523,198,431,427,012
  5. Step 5: Solve for x
    x = 4,523,198,431,427,012/86,619,681.40
  6. Step 6: Final answer
    x = 52,219,061.05

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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.