Home / 209,121,153,883.62-288,578,668,150.02-123,509,835,158.83

Finding the Fourth Proportional to 209,121,153,883.62, 288,578,668,150.02 and 123,509,835,158.83

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Solution

The fourth proportional to 209,121,153,883.62, 288,578,668,150.02 and 123,509,835,158.83 is: 170,438,538,003.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,121,153,883.62 : 288,578,668,150.02 = 123,509,835,158.83 : x
  2. Step 2: Convert to fraction form
    209,121,153,883.62/288,578,668,150.02 = 123,509,835,158.83/x
  3. Step 3: Cross multiply
    209,121,153,883.62x = 288,578,668,150.02 × 123,509,835,158.83
  4. Step 4: Simplify right side
    209,121,153,883.62x = 35,642,303,733,563,677,212,672
  5. Step 5: Solve for x
    x = 35,642,303,733,563,677,212,672/209,121,153,883.62
  6. Step 6: Final answer
    x = 170,438,538,003.67

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1.5x scale

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.