Home / 1,298,817,347.42-1,948,029,173.69-353,489,099.55

Finding the Fourth Proportional to 1,298,817,347.42, 1,948,029,173.69 and 353,489,099.55

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Solution

The fourth proportional to 1,298,817,347.42, 1,948,029,173.69 and 353,489,099.55 is: 530,180,074.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,817,347.42 : 1,948,029,173.69 = 353,489,099.55 : x
  2. Step 2: Convert to fraction form
    1,298,817,347.42/1,948,029,173.69 = 353,489,099.55/x
  3. Step 3: Cross multiply
    1,298,817,347.42x = 1,948,029,173.69 × 353,489,099.55
  4. Step 4: Simplify right side
    1,298,817,347.42x = 688,607,078,503,041,152
  5. Step 5: Solve for x
    x = 688,607,078,503,041,152/1,298,817,347.42
  6. Step 6: Final answer
    x = 530,180,074.88

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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.