Home / 198,801,287.40-298,201,931.10-53,257,312.20

Finding the Fourth Proportional to 198,801,287.40, 298,201,931.10 and 53,257,312.20

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Solution

The fourth proportional to 198,801,287.40, 298,201,931.10 and 53,257,312.20 is: 79,885,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,801,287.40 : 298,201,931.10 = 53,257,312.20 : x
  2. Step 2: Convert to fraction form
    198,801,287.40/298,201,931.10 = 53,257,312.20/x
  3. Step 3: Cross multiply
    198,801,287.40x = 298,201,931.10 × 53,257,312.20
  4. Step 4: Simplify right side
    198,801,287.40x = 15,881,433,343,235,592
  5. Step 5: Solve for x
    x = 15,881,433,343,235,592/198,801,287.40
  6. Step 6: Final answer
    x = 79,885,968.30

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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.