Home / 1,319,150,447.90-1,980,678,225.45-738,045,302.30

Finding the Fourth Proportional to 1,319,150,447.90, 1,980,678,225.45 and 738,045,302.30

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Solution

The fourth proportional to 1,319,150,447.90, 1,980,678,225.45 and 738,045,302.30 is: 1,108,160,378.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,150,447.90 : 1,980,678,225.45 = 738,045,302.30 : x
  2. Step 2: Convert to fraction form
    1,319,150,447.90/1,980,678,225.45 = 738,045,302.30/x
  3. Step 3: Cross multiply
    1,319,150,447.90x = 1,980,678,225.45 × 738,045,302.30
  4. Step 4: Simplify right side
    1,319,150,447.90x = 1,461,830,259,661,272,832
  5. Step 5: Solve for x
    x = 1,461,830,259,661,272,832/1,319,150,447.90
  6. Step 6: Final answer
    x = 1,108,160,378.51

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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.