Home / 157,943,804.89-237,018,007.91-85,210,789.63

Finding the Fourth Proportional to 157,943,804.89, 237,018,007.91 and 85,210,789.63

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Solution

The fourth proportional to 157,943,804.89, 237,018,007.91 and 85,210,789.63 is: 127,871,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,943,804.89 : 237,018,007.91 = 85,210,789.63 : x
  2. Step 2: Convert to fraction form
    157,943,804.89/237,018,007.91 = 85,210,789.63/x
  3. Step 3: Cross multiply
    157,943,804.89x = 237,018,007.91 × 85,210,789.63
  4. Step 4: Simplify right side
    157,943,804.89x = 20,196,491,610,540,684
  5. Step 5: Solve for x
    x = 20,196,491,610,540,684/157,943,804.89
  6. Step 6: Final answer
    x = 127,871,375.67

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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.