Home / 486,915,692.64-671,551,853.76-428,052,500.16

Finding the Fourth Proportional to 486,915,692.64, 671,551,853.76 and 428,052,500.16

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Solution

The fourth proportional to 486,915,692.64, 671,551,853.76 and 428,052,500.16 is: 590,368,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,915,692.64 : 671,551,853.76 = 428,052,500.16 : x
  2. Step 2: Convert to fraction form
    486,915,692.64/671,551,853.76 = 428,052,500.16/x
  3. Step 3: Cross multiply
    486,915,692.64x = 671,551,853.76 × 428,052,500.16
  4. Step 4: Simplify right side
    486,915,692.64x = 287,459,449,989,050,720
  5. Step 5: Solve for x
    x = 287,459,449,989,050,720/486,915,692.64
  6. Step 6: Final answer
    x = 590,368,013.05

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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.