Home / 553,609,074.80-830,413,612.20-323,459,692.40

Finding the Fourth Proportional to 553,609,074.80, 830,413,612.20 and 323,459,692.40

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Solution

The fourth proportional to 553,609,074.80, 830,413,612.20 and 323,459,692.40 is: 485,189,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,609,074.80 : 830,413,612.20 = 323,459,692.40 : x
  2. Step 2: Convert to fraction form
    553,609,074.80/830,413,612.20 = 323,459,692.40/x
  3. Step 3: Cross multiply
    553,609,074.80x = 830,413,612.20 × 323,459,692.40
  4. Step 4: Simplify right side
    553,609,074.80x = 268,605,331,566,984,896
  5. Step 5: Solve for x
    x = 268,605,331,566,984,896/553,609,074.80
  6. Step 6: Final answer
    x = 485,189,538.60

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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.