Home / 870,912,000.40-1,306,368,000.60-353,590,272.40

Finding the Fourth Proportional to 870,912,000.40, 1,306,368,000.60 and 353,590,272.40

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Solution

The fourth proportional to 870,912,000.40, 1,306,368,000.60 and 353,590,272.40 is: 530,385,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,912,000.40 : 1,306,368,000.60 = 353,590,272.40 : x
  2. Step 2: Convert to fraction form
    870,912,000.40/1,306,368,000.60 = 353,590,272.40/x
  3. Step 3: Cross multiply
    870,912,000.40x = 1,306,368,000.60 × 353,590,272.40
  4. Step 4: Simplify right side
    870,912,000.40x = 461,919,017,186,797,312
  5. Step 5: Solve for x
    x = 461,919,017,186,797,312/870,912,000.40
  6. Step 6: Final answer
    x = 530,385,408.60

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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.