Home / 714,077,056.29-985,372,257.69-400,750,756.77

Finding the Fourth Proportional to 714,077,056.29, 985,372,257.69 and 400,750,756.77

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Solution

The fourth proportional to 714,077,056.29, 985,372,257.69 and 400,750,756.77 is: 553,005,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,077,056.29 : 985,372,257.69 = 400,750,756.77 : x
  2. Step 2: Convert to fraction form
    714,077,056.29/985,372,257.69 = 400,750,756.77/x
  3. Step 3: Cross multiply
    714,077,056.29x = 985,372,257.69 × 400,750,756.77
  4. Step 4: Simplify right side
    714,077,056.29x = 394,888,677,969,430,976
  5. Step 5: Solve for x
    x = 394,888,677,969,430,976/714,077,056.29
  6. Step 6: Final answer
    x = 553,005,693.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.