Home / 1,319,150,386.40-1,980,678,133.20-738,045,240.80

Finding the Fourth Proportional to 1,319,150,386.40, 1,980,678,133.20 and 738,045,240.80

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Solution

The fourth proportional to 1,319,150,386.40, 1,980,678,133.20 and 738,045,240.80 is: 1,108,160,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,150,386.40 : 1,980,678,133.20 = 738,045,240.80 : x
  2. Step 2: Convert to fraction form
    1,319,150,386.40/1,980,678,133.20 = 738,045,240.80/x
  3. Step 3: Cross multiply
    1,319,150,386.40x = 1,980,678,133.20 × 738,045,240.80
  4. Step 4: Simplify right side
    1,319,150,386.40x = 1,461,830,069,764,888,320
  5. Step 5: Solve for x
    x = 1,461,830,069,764,888,320/1,319,150,386.40
  6. Step 6: Final answer
    x = 1,108,160,286.22

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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.