Home / 489,357,219.80-734,035,829.70-470,545,520.60

Finding the Fourth Proportional to 489,357,219.80, 734,035,829.70 and 470,545,520.60

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Solution

The fourth proportional to 489,357,219.80, 734,035,829.70 and 470,545,520.60 is: 705,818,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,357,219.80 : 734,035,829.70 = 470,545,520.60 : x
  2. Step 2: Convert to fraction form
    489,357,219.80/734,035,829.70 = 470,545,520.60/x
  3. Step 3: Cross multiply
    489,357,219.80x = 734,035,829.70 × 470,545,520.60
  4. Step 4: Simplify right side
    489,357,219.80x = 345,397,271,625,239,488
  5. Step 5: Solve for x
    x = 345,397,271,625,239,488/489,357,219.80
  6. Step 6: Final answer
    x = 705,818,280.90

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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.