Home / 186,808,031.40-279,968,962.05-76,014,556.74

Finding the Fourth Proportional to 186,808,031.40, 279,968,962.05 and 76,014,556.74

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Solution

The fourth proportional to 186,808,031.40, 279,968,962.05 and 76,014,556.74 is: 113,922,920.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,808,031.40 : 279,968,962.05 = 76,014,556.74 : x
  2. Step 2: Convert to fraction form
    186,808,031.40/279,968,962.05 = 76,014,556.74/x
  3. Step 3: Cross multiply
    186,808,031.40x = 279,968,962.05 × 76,014,556.74
  4. Step 4: Simplify right side
    186,808,031.40x = 21,281,716,551,188,632
  5. Step 5: Solve for x
    x = 21,281,716,551,188,632/186,808,031.40
  6. Step 6: Final answer
    x = 113,922,920.72

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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.