Home / 281,037,112.80-387,822,886.08-155,594,899.50

Finding the Fourth Proportional to 281,037,112.80, 387,822,886.08 and 155,594,899.50

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Solution

The fourth proportional to 281,037,112.80, 387,822,886.08 and 155,594,899.50 is: 214,716,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037,112.80 : 387,822,886.08 = 155,594,899.50 : x
  2. Step 2: Convert to fraction form
    281,037,112.80/387,822,886.08 = 155,594,899.50/x
  3. Step 3: Cross multiply
    281,037,112.80x = 387,822,886.08 × 155,594,899.50
  4. Step 4: Simplify right side
    281,037,112.80x = 60,343,262,983,417,544
  5. Step 5: Solve for x
    x = 60,343,262,983,417,544/281,037,112.80
  6. Step 6: Final answer
    x = 214,716,349.67

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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.