Home / 528,869,708.80-793,304,563.20-165,400,806.40

Finding the Fourth Proportional to 528,869,708.80, 793,304,563.20 and 165,400,806.40

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Solution

The fourth proportional to 528,869,708.80, 793,304,563.20 and 165,400,806.40 is: 248,101,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,869,708.80 : 793,304,563.20 = 165,400,806.40 : x
  2. Step 2: Convert to fraction form
    528,869,708.80/793,304,563.20 = 165,400,806.40/x
  3. Step 3: Cross multiply
    528,869,708.80x = 793,304,563.20 × 165,400,806.40
  4. Step 4: Simplify right side
    528,869,708.80x = 131,213,214,474,079,776
  5. Step 5: Solve for x
    x = 131,213,214,474,079,776/528,869,708.80
  6. Step 6: Final answer
    x = 248,101,209.60

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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.