Home / 640,041,026.10-960,061,539.15-478,797,890.10

Finding the Fourth Proportional to 640,041,026.10, 960,061,539.15 and 478,797,890.10

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Solution

The fourth proportional to 640,041,026.10, 960,061,539.15 and 478,797,890.10 is: 718,196,835.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,041,026.10 : 960,061,539.15 = 478,797,890.10 : x
  2. Step 2: Convert to fraction form
    640,041,026.10/960,061,539.15 = 478,797,890.10/x
  3. Step 3: Cross multiply
    640,041,026.10x = 960,061,539.15 × 478,797,890.10
  4. Step 4: Simplify right side
    640,041,026.10x = 459,675,439,311,178,560
  5. Step 5: Solve for x
    x = 459,675,439,311,178,560/640,041,026.10
  6. Step 6: Final answer
    x = 718,196,835.15

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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.