Home / 145,678,857.40-218,518,286.10-144,828,551.80

Finding the Fourth Proportional to 145,678,857.40, 218,518,286.10 and 144,828,551.80

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Solution

The fourth proportional to 145,678,857.40, 218,518,286.10 and 144,828,551.80 is: 217,242,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,678,857.40 : 218,518,286.10 = 144,828,551.80 : x
  2. Step 2: Convert to fraction form
    145,678,857.40/218,518,286.10 = 144,828,551.80/x
  3. Step 3: Cross multiply
    145,678,857.40x = 218,518,286.10 × 144,828,551.80
  4. Step 4: Simplify right side
    145,678,857.40x = 31,647,686,917,681,072
  5. Step 5: Solve for x
    x = 31,647,686,917,681,072/145,678,857.40
  6. Step 6: Final answer
    x = 217,242,827.70

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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.