Home / 518,412,751.53-777,619,875.73-211,704,864.40

Finding the Fourth Proportional to 518,412,751.53, 777,619,875.73 and 211,704,864.40

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Solution

The fourth proportional to 518,412,751.53, 777,619,875.73 and 211,704,864.40 is: 317,557,602.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,412,751.53 : 777,619,875.73 = 211,704,864.40 : x
  2. Step 2: Convert to fraction form
    518,412,751.53/777,619,875.73 = 211,704,864.40/x
  3. Step 3: Cross multiply
    518,412,751.53x = 777,619,875.73 × 211,704,864.40
  4. Step 4: Simplify right side
    518,412,751.53x = 164,625,910,347,005,280
  5. Step 5: Solve for x
    x = 164,625,910,347,005,280/518,412,751.53
  6. Step 6: Final answer
    x = 317,557,602.24

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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.