Home / 640,656,003.60-960,984,005.40-579,434,000.40

Finding the Fourth Proportional to 640,656,003.60, 960,984,005.40 and 579,434,000.40

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Solution

The fourth proportional to 640,656,003.60, 960,984,005.40 and 579,434,000.40 is: 869,151,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,656,003.60 : 960,984,005.40 = 579,434,000.40 : x
  2. Step 2: Convert to fraction form
    640,656,003.60/960,984,005.40 = 579,434,000.40/x
  3. Step 3: Cross multiply
    640,656,003.60x = 960,984,005.40 × 579,434,000.40
  4. Step 4: Simplify right side
    640,656,003.60x = 556,826,806,569,337,152
  5. Step 5: Solve for x
    x = 556,826,806,569,337,152/640,656,003.60
  6. Step 6: Final answer
    x = 869,151,000.60

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1.5x scale

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.