Home / 648,012,985.79-894,260,290.64-350,655,230.32

Finding the Fourth Proportional to 648,012,985.79, 894,260,290.64 and 350,655,230.32

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Solution

The fourth proportional to 648,012,985.79, 894,260,290.64 and 350,655,230.32 is: 483,905,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,012,985.79 : 894,260,290.64 = 350,655,230.32 : x
  2. Step 2: Convert to fraction form
    648,012,985.79/894,260,290.64 = 350,655,230.32/x
  3. Step 3: Cross multiply
    648,012,985.79x = 894,260,290.64 × 350,655,230.32
  4. Step 4: Simplify right side
    648,012,985.79x = 313,577,048,176,410,432
  5. Step 5: Solve for x
    x = 313,577,048,176,410,432/648,012,985.79
  6. Step 6: Final answer
    x = 483,905,500.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.