Home / 209,954,008.80-314,931,013.20-129,220,466.40

Finding the Fourth Proportional to 209,954,008.80, 314,931,013.20 and 129,220,466.40

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Solution

The fourth proportional to 209,954,008.80, 314,931,013.20 and 129,220,466.40 is: 193,830,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,954,008.80 : 314,931,013.20 = 129,220,466.40 : x
  2. Step 2: Convert to fraction form
    209,954,008.80/314,931,013.20 = 129,220,466.40/x
  3. Step 3: Cross multiply
    209,954,008.80x = 314,931,013.20 × 129,220,466.40
  4. Step 4: Simplify right side
    209,954,008.80x = 40,695,532,409,528,560
  5. Step 5: Solve for x
    x = 40,695,532,409,528,560/209,954,008.80
  6. Step 6: Final answer
    x = 193,830,699.60

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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.