Home / 210,831,730.80-316,218,436.20-65,365,321.20

Finding the Fourth Proportional to 210,831,730.80, 316,218,436.20 and 65,365,321.20

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Solution

The fourth proportional to 210,831,730.80, 316,218,436.20 and 65,365,321.20 is: 98,038,941.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,831,730.80 : 316,218,436.20 = 65,365,321.20 : x
  2. Step 2: Convert to fraction form
    210,831,730.80/316,218,436.20 = 65,365,321.20/x
  3. Step 3: Cross multiply
    210,831,730.80x = 316,218,436.20 × 65,365,321.20
  4. Step 4: Simplify right side
    210,831,730.80x = 20,669,719,651,574,708
  5. Step 5: Solve for x
    x = 20,669,719,651,574,708/210,831,730.80
  6. Step 6: Final answer
    x = 98,038,941.16

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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.