Home / 867,518,515.20-1,301,269,478.40-212,472,422.40

Finding the Fourth Proportional to 867,518,515.20, 1,301,269,478.40 and 212,472,422.40

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Solution

The fourth proportional to 867,518,515.20, 1,301,269,478.40 and 212,472,422.40 is: 318,706,602.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,518,515.20 : 1,301,269,478.40 = 212,472,422.40 : x
  2. Step 2: Convert to fraction form
    867,518,515.20/1,301,269,478.40 = 212,472,422.40/x
  3. Step 3: Cross multiply
    867,518,515.20x = 1,301,269,478.40 × 212,472,422.40
  4. Step 4: Simplify right side
    867,518,515.20x = 276,483,878,270,832,512
  5. Step 5: Solve for x
    x = 276,483,878,270,832,512/867,518,515.20
  6. Step 6: Final answer
    x = 318,706,602.14

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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.