Home / 138,499,685,698.17-207,883,869,665.40-66,839,630,035.76

Finding the Fourth Proportional to 138,499,685,698.17, 207,883,869,665.40 and 66,839,630,035.76

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Solution

The fourth proportional to 138,499,685,698.17, 207,883,869,665.40 and 66,839,630,035.76 is: 100,324,277,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,499,685,698.17 : 207,883,869,665.40 = 66,839,630,035.76 : x
  2. Step 2: Convert to fraction form
    138,499,685,698.17/207,883,869,665.40 = 66,839,630,035.76/x
  3. Step 3: Cross multiply
    138,499,685,698.17x = 207,883,869,665.40 × 66,839,630,035.76
  4. Step 4: Simplify right side
    138,499,685,698.17x = 13,894,880,938,837,487,386,624
  5. Step 5: Solve for x
    x = 13,894,880,938,837,487,386,624/138,499,685,698.17
  6. Step 6: Final answer
    x = 100,324,277,768.53

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1.5x scale

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.