Home / 785,991,201.60-1,178,986,802.40-203,720,822.40

Finding the Fourth Proportional to 785,991,201.60, 1,178,986,802.40 and 203,720,822.40

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Solution

The fourth proportional to 785,991,201.60, 1,178,986,802.40 and 203,720,822.40 is: 305,581,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,991,201.60 : 1,178,986,802.40 = 203,720,822.40 : x
  2. Step 2: Convert to fraction form
    785,991,201.60/1,178,986,802.40 = 203,720,822.40/x
  3. Step 3: Cross multiply
    785,991,201.60x = 1,178,986,802.40 × 203,720,822.40
  4. Step 4: Simplify right side
    785,991,201.60x = 240,184,160,983,674,336
  5. Step 5: Solve for x
    x = 240,184,160,983,674,336/785,991,201.60
  6. Step 6: Final answer
    x = 305,581,233.60

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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.