Home / 652,860,812.80-979,291,219.20-615,447,366.40

Finding the Fourth Proportional to 652,860,812.80, 979,291,219.20 and 615,447,366.40

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Solution

The fourth proportional to 652,860,812.80, 979,291,219.20 and 615,447,366.40 is: 923,171,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,860,812.80 : 979,291,219.20 = 615,447,366.40 : x
  2. Step 2: Convert to fraction form
    652,860,812.80/979,291,219.20 = 615,447,366.40/x
  3. Step 3: Cross multiply
    652,860,812.80x = 979,291,219.20 × 615,447,366.40
  4. Step 4: Simplify right side
    652,860,812.80x = 602,702,201,795,285,120
  5. Step 5: Solve for x
    x = 602,702,201,795,285,120/652,860,812.80
  6. Step 6: Final answer
    x = 923,171,049.60

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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.