Home / 265,803,984.34-398,704,303.45-143,040,129.19

Finding the Fourth Proportional to 265,803,984.34, 398,704,303.45 and 143,040,129.19

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Solution

The fourth proportional to 265,803,984.34, 398,704,303.45 and 143,040,129.19 is: 214,559,293.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,803,984.34 : 398,704,303.45 = 143,040,129.19 : x
  2. Step 2: Convert to fraction form
    265,803,984.34/398,704,303.45 = 143,040,129.19/x
  3. Step 3: Cross multiply
    265,803,984.34x = 398,704,303.45 × 143,040,129.19
  4. Step 4: Simplify right side
    265,803,984.34x = 57,030,715,074,096,960
  5. Step 5: Solve for x
    x = 57,030,715,074,096,960/265,803,984.34
  6. Step 6: Final answer
    x = 214,559,293.44

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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.