Home / 152,722,421.98-210,862,384.16-142,965,165.22

Finding the Fourth Proportional to 152,722,421.98, 210,862,384.16 and 142,965,165.22

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Solution

The fourth proportional to 152,722,421.98, 210,862,384.16 and 142,965,165.22 is: 197,390,633.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,722,421.98 : 210,862,384.16 = 142,965,165.22 : x
  2. Step 2: Convert to fraction form
    152,722,421.98/210,862,384.16 = 142,965,165.22/x
  3. Step 3: Cross multiply
    152,722,421.98x = 210,862,384.16 × 142,965,165.22
  4. Step 4: Simplify right side
    152,722,421.98x = 30,145,975,590,117,512
  5. Step 5: Solve for x
    x = 30,145,975,590,117,512/152,722,421.98
  6. Step 6: Final answer
    x = 197,390,633.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.