Home / 209,957,253.60-314,935,880.40-66,350,085.60

Finding the Fourth Proportional to 209,957,253.60, 314,935,880.40 and 66,350,085.60

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Solution

The fourth proportional to 209,957,253.60, 314,935,880.40 and 66,350,085.60 is: 99,525,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,957,253.60 : 314,935,880.40 = 66,350,085.60 : x
  2. Step 2: Convert to fraction form
    209,957,253.60/314,935,880.40 = 66,350,085.60/x
  3. Step 3: Cross multiply
    209,957,253.60x = 314,935,880.40 × 66,350,085.60
  4. Step 4: Simplify right side
    209,957,253.60x = 20,896,022,623,051,360
  5. Step 5: Solve for x
    x = 20,896,022,623,051,360/209,957,253.60
  6. Step 6: Final answer
    x = 99,525,128.40

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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.