Home / 489,641,315.40-734,461,973.10-162,167,371.20

Finding the Fourth Proportional to 489,641,315.40, 734,461,973.10 and 162,167,371.20

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Solution

The fourth proportional to 489,641,315.40, 734,461,973.10 and 162,167,371.20 is: 243,251,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,641,315.40 : 734,461,973.10 = 162,167,371.20 : x
  2. Step 2: Convert to fraction form
    489,641,315.40/734,461,973.10 = 162,167,371.20/x
  3. Step 3: Cross multiply
    489,641,315.40x = 734,461,973.10 × 162,167,371.20
  4. Step 4: Simplify right side
    489,641,315.40x = 119,105,767,423,992,112
  5. Step 5: Solve for x
    x = 119,105,767,423,992,112/489,641,315.40
  6. Step 6: Final answer
    x = 243,251,056.80

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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.