Home / 1,379,123,968.80-2,069,693,722.80-970,977,280.80

Finding the Fourth Proportional to 1,379,123,968.80, 2,069,693,722.80 and 970,977,280.80

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Solution

The fourth proportional to 1,379,123,968.80, 2,069,693,722.80 and 970,977,280.80 is: 1,457,175,445.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,123,968.80 : 2,069,693,722.80 = 970,977,280.80 : x
  2. Step 2: Convert to fraction form
    1,379,123,968.80/2,069,693,722.80 = 970,977,280.80/x
  3. Step 3: Cross multiply
    1,379,123,968.80x = 2,069,693,722.80 × 970,977,280.80
  4. Step 4: Simplify right side
    1,379,123,968.80x = 2,009,625,583,053,172,736
  5. Step 5: Solve for x
    x = 2,009,625,583,053,172,736/1,379,123,968.80
  6. Step 6: Final answer
    x = 1,457,175,445.08

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1.5x scale

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.