Home / 780,234,637.89-1,076,880,222.87-462,871,040.90

Finding the Fourth Proportional to 780,234,637.89, 1,076,880,222.87 and 462,871,040.90

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Solution

The fourth proportional to 780,234,637.89, 1,076,880,222.87 and 462,871,040.90 is: 638,854,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,234,637.89 : 1,076,880,222.87 = 462,871,040.90 : x
  2. Step 2: Convert to fraction form
    780,234,637.89/1,076,880,222.87 = 462,871,040.90/x
  3. Step 3: Cross multiply
    780,234,637.89x = 1,076,880,222.87 × 462,871,040.90
  4. Step 4: Simplify right side
    780,234,637.89x = 498,456,669,677,363,904
  5. Step 5: Solve for x
    x = 498,456,669,677,363,904/780,234,637.89
  6. Step 6: Final answer
    x = 638,854,833.49

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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.