Home / 115,119,045.86-172,768,113.90-80,349,570.50

Finding the Fourth Proportional to 115,119,045.86, 172,768,113.90 and 80,349,570.50

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Solution

The fourth proportional to 115,119,045.86, 172,768,113.90 and 80,349,570.50 is: 120,586,855.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,119,045.86 : 172,768,113.90 = 80,349,570.50 : x
  2. Step 2: Convert to fraction form
    115,119,045.86/172,768,113.90 = 80,349,570.50/x
  3. Step 3: Cross multiply
    115,119,045.86x = 172,768,113.90 × 80,349,570.50
  4. Step 4: Simplify right side
    115,119,045.86x = 13,881,843,747,960,080
  5. Step 5: Solve for x
    x = 13,881,843,747,960,080/115,119,045.86
  6. Step 6: Final answer
    x = 120,586,855.50

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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.