Home / 85,966,019.57-128,840,850-46,572,752.54

Finding the Fourth Proportional to 85,966,019.57, 128,840,850 and 46,572,752.54

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Solution

The fourth proportional to 85,966,019.57, 128,840,850 and 46,572,752.54 is: 69,800,521.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,966,019.57 : 128,840,850 = 46,572,752.54 : x
  2. Step 2: Convert to fraction form
    85,966,019.57/128,840,850 = 46,572,752.54/x
  3. Step 3: Cross multiply
    85,966,019.57x = 128,840,850 × 46,572,752.54
  4. Step 4: Simplify right side
    85,966,019.57x = 6,000,473,023,449,054
  5. Step 5: Solve for x
    x = 6,000,473,023,449,054/85,966,019.57
  6. Step 6: Final answer
    x = 69,800,521.81

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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.