Home / 489,916,056.60-734,023,779.30-317,304,019.80

Finding the Fourth Proportional to 489,916,056.60, 734,023,779.30 and 317,304,019.80

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Solution

The fourth proportional to 489,916,056.60, 734,023,779.30 and 317,304,019.80 is: 475,405,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,916,056.60 : 734,023,779.30 = 317,304,019.80 : x
  2. Step 2: Convert to fraction form
    489,916,056.60/734,023,779.30 = 317,304,019.80/x
  3. Step 3: Cross multiply
    489,916,056.60x = 734,023,779.30 × 317,304,019.80
  4. Step 4: Simplify right side
    489,916,056.60x = 232,908,695,800,678,016
  5. Step 5: Solve for x
    x = 232,908,695,800,678,016/489,916,056.60
  6. Step 6: Final answer
    x = 475,405,312.12

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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.