Home / 523,498,720.90-785,248,081.35-442,877,152.90

Finding the Fourth Proportional to 523,498,720.90, 785,248,081.35 and 442,877,152.90

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Solution

The fourth proportional to 523,498,720.90, 785,248,081.35 and 442,877,152.90 is: 664,315,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,498,720.90 : 785,248,081.35 = 442,877,152.90 : x
  2. Step 2: Convert to fraction form
    523,498,720.90/785,248,081.35 = 442,877,152.90/x
  3. Step 3: Cross multiply
    523,498,720.90x = 785,248,081.35 × 442,877,152.90
  4. Step 4: Simplify right side
    523,498,720.90x = 347,768,434,588,475,584
  5. Step 5: Solve for x
    x = 347,768,434,588,475,584/523,498,720.90
  6. Step 6: Final answer
    x = 664,315,729.35

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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.