Home / 56,678,643.20-85,017,964.80-45,341,235.20

Finding the Fourth Proportional to 56,678,643.20, 85,017,964.80 and 45,341,235.20

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Solution

The fourth proportional to 56,678,643.20, 85,017,964.80 and 45,341,235.20 is: 68,011,852.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,678,643.20 : 85,017,964.80 = 45,341,235.20 : x
  2. Step 2: Convert to fraction form
    56,678,643.20/85,017,964.80 = 45,341,235.20/x
  3. Step 3: Cross multiply
    56,678,643.20x = 85,017,964.80 × 45,341,235.20
  4. Step 4: Simplify right side
    56,678,643.20x = 3,854,819,538,222,121
  5. Step 5: Solve for x
    x = 3,854,819,538,222,121/56,678,643.20
  6. Step 6: Final answer
    x = 68,011,852.80

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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.