Home / 100,344,185.34-138,473,276.63-56,290,238.30

Finding the Fourth Proportional to 100,344,185.34, 138,473,276.63 and 56,290,238.30

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Solution

The fourth proportional to 100,344,185.34, 138,473,276.63 and 56,290,238.30 is: 77,679,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,344,185.34 : 138,473,276.63 = 56,290,238.30 : x
  2. Step 2: Convert to fraction form
    100,344,185.34/138,473,276.63 = 56,290,238.30/x
  3. Step 3: Cross multiply
    100,344,185.34x = 138,473,276.63 × 56,290,238.30
  4. Step 4: Simplify right side
    100,344,185.34x = 7,794,693,738,710,704
  5. Step 5: Solve for x
    x = 7,794,693,738,710,704/100,344,185.34
  6. Step 6: Final answer
    x = 77,679,575.68

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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.