Home / 810,225,429.50-1,118,112,227.28-438,947,460.88

Finding the Fourth Proportional to 810,225,429.50, 1,118,112,227.28 and 438,947,460.88

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Solution

The fourth proportional to 810,225,429.50, 1,118,112,227.28 and 438,947,460.88 is: 605,748,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,225,429.50 : 1,118,112,227.28 = 438,947,460.88 : x
  2. Step 2: Convert to fraction form
    810,225,429.50/1,118,112,227.28 = 438,947,460.88/x
  3. Step 3: Cross multiply
    810,225,429.50x = 1,118,112,227.28 × 438,947,460.88
  4. Step 4: Simplify right side
    810,225,429.50x = 490,792,523,140,642,176
  5. Step 5: Solve for x
    x = 490,792,523,140,642,176/810,225,429.50
  6. Step 6: Final answer
    x = 605,748,110.67

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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.