Home / 1,139,532,845.60-1,711,090,858.80-655,803,437.60

Finding the Fourth Proportional to 1,139,532,845.60, 1,711,090,858.80 and 655,803,437.60

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Solution

The fourth proportional to 1,139,532,845.60, 1,711,090,858.80 and 655,803,437.60 is: 984,736,220.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,532,845.60 : 1,711,090,858.80 = 655,803,437.60 : x
  2. Step 2: Convert to fraction form
    1,139,532,845.60/1,711,090,858.80 = 655,803,437.60/x
  3. Step 3: Cross multiply
    1,139,532,845.60x = 1,711,090,858.80 × 655,803,437.60
  4. Step 4: Simplify right side
    1,139,532,845.60x = 1,122,139,267,246,976,256
  5. Step 5: Solve for x
    x = 1,122,139,267,246,976,256/1,139,532,845.60
  6. Step 6: Final answer
    x = 984,736,220.27

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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.