Home / 131,990,541.40-197,985,812.10-97,978,317.40

Finding the Fourth Proportional to 131,990,541.40, 197,985,812.10 and 97,978,317.40

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Solution

The fourth proportional to 131,990,541.40, 197,985,812.10 and 97,978,317.40 is: 146,967,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,990,541.40 : 197,985,812.10 = 97,978,317.40 : x
  2. Step 2: Convert to fraction form
    131,990,541.40/197,985,812.10 = 97,978,317.40/x
  3. Step 3: Cross multiply
    131,990,541.40x = 197,985,812.10 × 97,978,317.40
  4. Step 4: Simplify right side
    131,990,541.40x = 19,398,316,738,630,560
  5. Step 5: Solve for x
    x = 19,398,316,738,630,560/131,990,541.40
  6. Step 6: Final answer
    x = 146,967,476.10

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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.