Home / 265,803,984.55-398,704,303.74-143,040,129.40

Finding the Fourth Proportional to 265,803,984.55, 398,704,303.74 and 143,040,129.40

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Solution

The fourth proportional to 265,803,984.55, 398,704,303.74 and 143,040,129.40 is: 214,559,293.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,803,984.55 : 398,704,303.74 = 143,040,129.40 : x
  2. Step 2: Convert to fraction form
    265,803,984.55/398,704,303.74 = 143,040,129.40/x
  3. Step 3: Cross multiply
    265,803,984.55x = 398,704,303.74 × 143,040,129.40
  4. Step 4: Simplify right side
    265,803,984.55x = 57,030,715,199,306,504
  5. Step 5: Solve for x
    x = 57,030,715,199,306,504/265,803,984.55
  6. Step 6: Final answer
    x = 214,559,293.74

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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.