Home / 145,678,838.40-218,518,257.60-144,828,532.80

Finding the Fourth Proportional to 145,678,838.40, 218,518,257.60 and 144,828,532.80

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Solution

The fourth proportional to 145,678,838.40, 218,518,257.60 and 144,828,532.80 is: 217,242,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678,838.40 : 218,518,257.60 = 144,828,532.80 : x
  2. Step 2: Convert to fraction form
    145,678,838.40/218,518,257.60 = 144,828,532.80/x
  3. Step 3: Cross multiply
    145,678,838.40x = 218,518,257.60 × 144,828,532.80
  4. Step 4: Simplify right side
    145,678,838.40x = 31,647,678,638,220,452
  5. Step 5: Solve for x
    x = 31,647,678,638,220,452/145,678,838.40
  6. Step 6: Final answer
    x = 217,242,799.20

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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.