Home / 145,678,748.90-218,518,123.35-144,828,443.30

Finding the Fourth Proportional to 145,678,748.90, 218,518,123.35 and 144,828,443.30

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Solution

The fourth proportional to 145,678,748.90, 218,518,123.35 and 144,828,443.30 is: 217,242,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678,748.90 : 218,518,123.35 = 144,828,443.30 : x
  2. Step 2: Convert to fraction form
    145,678,748.90/218,518,123.35 = 144,828,443.30/x
  3. Step 3: Cross multiply
    145,678,748.90x = 218,518,123.35 × 144,828,443.30
  4. Step 4: Simplify right side
    145,678,748.90x = 31,647,639,637,617,884
  5. Step 5: Solve for x
    x = 31,647,639,637,617,884/145,678,748.90
  6. Step 6: Final answer
    x = 217,242,664.95

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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.