Home / 199,525,201.20-299,287,801.80-130,996,868.40

Finding the Fourth Proportional to 199,525,201.20, 299,287,801.80 and 130,996,868.40

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Solution

The fourth proportional to 199,525,201.20, 299,287,801.80 and 130,996,868.40 is: 196,495,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,525,201.20 : 299,287,801.80 = 130,996,868.40 : x
  2. Step 2: Convert to fraction form
    199,525,201.20/299,287,801.80 = 130,996,868.40/x
  3. Step 3: Cross multiply
    199,525,201.20x = 299,287,801.80 × 130,996,868.40
  4. Step 4: Simplify right side
    199,525,201.20x = 39,205,764,786,119,888
  5. Step 5: Solve for x
    x = 39,205,764,786,119,888/199,525,201.20
  6. Step 6: Final answer
    x = 196,495,302.60

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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.