Home / 280,547,028.04-387,166,855.38-156,787,701.64

Finding the Fourth Proportional to 280,547,028.04, 387,166,855.38 and 156,787,701.64

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Solution

The fourth proportional to 280,547,028.04, 387,166,855.38 and 156,787,701.64 is: 216,373,710.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,547,028.04 : 387,166,855.38 = 156,787,701.64 : x
  2. Step 2: Convert to fraction form
    280,547,028.04/387,166,855.38 = 156,787,701.64/x
  3. Step 3: Cross multiply
    280,547,028.04x = 387,166,855.38 × 156,787,701.64
  4. Step 4: Simplify right side
    280,547,028.04x = 60,703,001,406,216,464
  5. Step 5: Solve for x
    x = 60,703,001,406,216,464/280,547,028.04
  6. Step 6: Final answer
    x = 216,373,710.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.