Home / 1,031,619,866.40-1,547,429,799.60-664,287,847.20

Finding the Fourth Proportional to 1,031,619,866.40, 1,547,429,799.60 and 664,287,847.20

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Solution

The fourth proportional to 1,031,619,866.40, 1,547,429,799.60 and 664,287,847.20 is: 996,431,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,619,866.40 : 1,547,429,799.60 = 664,287,847.20 : x
  2. Step 2: Convert to fraction form
    1,031,619,866.40/1,547,429,799.60 = 664,287,847.20/x
  3. Step 3: Cross multiply
    1,031,619,866.40x = 1,547,429,799.60 × 664,287,847.20
  4. Step 4: Simplify right side
    1,031,619,866.40x = 1,027,938,810,269,411,456
  5. Step 5: Solve for x
    x = 1,027,938,810,269,411,456/1,031,619,866.40
  6. Step 6: Final answer
    x = 996,431,770.80

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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.