Home / 105,353,939,618.76-145,388,544,274.45-57,181,992,781.67

Finding the Fourth Proportional to 105,353,939,618.76, 145,388,544,274.45 and 57,181,992,781.67

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Solution

The fourth proportional to 105,353,939,618.76, 145,388,544,274.45 and 57,181,992,781.67 is: 78,911,208,440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,353,939,618.76 : 145,388,544,274.45 = 57,181,992,781.67 : x
  2. Step 2: Convert to fraction form
    105,353,939,618.76/145,388,544,274.45 = 57,181,992,781.67/x
  3. Step 3: Cross multiply
    105,353,939,618.76x = 145,388,544,274.45 × 57,181,992,781.67
  4. Step 4: Simplify right side
    105,353,939,618.76x = 8,313,606,689,239,109,468,160
  5. Step 5: Solve for x
    x = 8,313,606,689,239,109,468,160/105,353,939,618.76
  6. Step 6: Final answer
    x = 78,911,208,440.08

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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.