Home / 447,638,830.80-671,458,246.20-265,792,405.20

Finding the Fourth Proportional to 447,638,830.80, 671,458,246.20 and 265,792,405.20

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Solution

The fourth proportional to 447,638,830.80, 671,458,246.20 and 265,792,405.20 is: 398,688,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,638,830.80 : 671,458,246.20 = 265,792,405.20 : x
  2. Step 2: Convert to fraction form
    447,638,830.80/671,458,246.20 = 265,792,405.20/x
  3. Step 3: Cross multiply
    447,638,830.80x = 671,458,246.20 × 265,792,405.20
  4. Step 4: Simplify right side
    447,638,830.80x = 178,468,502,248,871,776
  5. Step 5: Solve for x
    x = 178,468,502,248,871,776/447,638,830.80
  6. Step 6: Final answer
    x = 398,688,607.80

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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.