Home / 489,646,981.40-734,470,472.10-162,173,037.20

Finding the Fourth Proportional to 489,646,981.40, 734,470,472.10 and 162,173,037.20

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Solution

The fourth proportional to 489,646,981.40, 734,470,472.10 and 162,173,037.20 is: 243,259,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,646,981.40 : 734,470,472.10 = 162,173,037.20 : x
  2. Step 2: Convert to fraction form
    489,646,981.40/734,470,472.10 = 162,173,037.20/x
  3. Step 3: Cross multiply
    489,646,981.40x = 734,470,472.10 × 162,173,037.20
  4. Step 4: Simplify right side
    489,646,981.40x = 119,111,307,194,174,864
  5. Step 5: Solve for x
    x = 119,111,307,194,174,864/489,646,981.40
  6. Step 6: Final answer
    x = 243,259,555.80

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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.