Home / 489,452,009.40-734,178,014.10-448,637,340.60

Finding the Fourth Proportional to 489,452,009.40, 734,178,014.10 and 448,637,340.60

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Solution

The fourth proportional to 489,452,009.40, 734,178,014.10 and 448,637,340.60 is: 672,956,010.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,452,009.40 : 734,178,014.10 = 448,637,340.60 : x
  2. Step 2: Convert to fraction form
    489,452,009.40/734,178,014.10 = 448,637,340.60/x
  3. Step 3: Cross multiply
    489,452,009.40x = 734,178,014.10 × 448,637,340.60
  4. Step 4: Simplify right side
    489,452,009.40x = 329,379,671,772,813,312
  5. Step 5: Solve for x
    x = 329,379,671,772,813,312/489,452,009.40
  6. Step 6: Final answer
    x = 672,956,010.90

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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.