Home / 860,188,307.20-1,290,282,460.80-314,748,563.20

Finding the Fourth Proportional to 860,188,307.20, 1,290,282,460.80 and 314,748,563.20

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Solution

The fourth proportional to 860,188,307.20, 1,290,282,460.80 and 314,748,563.20 is: 472,122,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,188,307.20 : 1,290,282,460.80 = 314,748,563.20 : x
  2. Step 2: Convert to fraction form
    860,188,307.20/1,290,282,460.80 = 314,748,563.20/x
  3. Step 3: Cross multiply
    860,188,307.20x = 1,290,282,460.80 × 314,748,563.20
  4. Step 4: Simplify right side
    860,188,307.20x = 406,114,550,658,960,320
  5. Step 5: Solve for x
    x = 406,114,550,658,960,320/860,188,307.20
  6. Step 6: Final answer
    x = 472,122,844.80

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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.