Home / 538,828,745.10-808,243,117.65-487,172,679.90

Finding the Fourth Proportional to 538,828,745.10, 808,243,117.65 and 487,172,679.90

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Solution

The fourth proportional to 538,828,745.10, 808,243,117.65 and 487,172,679.90 is: 730,759,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,828,745.10 : 808,243,117.65 = 487,172,679.90 : x
  2. Step 2: Convert to fraction form
    538,828,745.10/808,243,117.65 = 487,172,679.90/x
  3. Step 3: Cross multiply
    538,828,745.10x = 808,243,117.65 × 487,172,679.90
  4. Step 4: Simplify right side
    538,828,745.10x = 393,753,965,636,281,472
  5. Step 5: Solve for x
    x = 393,753,965,636,281,472/538,828,745.10
  6. Step 6: Final answer
    x = 730,759,019.85

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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.