Home / 85,566,875.04-128,286,480.24-51,480,234.72

Finding the Fourth Proportional to 85,566,875.04, 128,286,480.24 and 51,480,234.72

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Solution

The fourth proportional to 85,566,875.04, 128,286,480.24 and 51,480,234.72 is: 77,181,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,566,875.04 : 128,286,480.24 = 51,480,234.72 : x
  2. Step 2: Convert to fraction form
    85,566,875.04/128,286,480.24 = 51,480,234.72/x
  3. Step 3: Cross multiply
    85,566,875.04x = 128,286,480.24 × 51,480,234.72
  4. Step 4: Simplify right side
    85,566,875.04x = 6,604,218,114,157,842
  5. Step 5: Solve for x
    x = 6,604,218,114,157,842/85,566,875.04
  6. Step 6: Final answer
    x = 77,181,948.17

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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.