Home / 257,742,875.21-355,686,088.91-140,269,613.63

Finding the Fourth Proportional to 257,742,875.21, 355,686,088.91 and 140,269,613.63

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Solution

The fourth proportional to 257,742,875.21, 355,686,088.91 and 140,269,613.63 is: 193,572,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,742,875.21 : 355,686,088.91 = 140,269,613.63 : x
  2. Step 2: Convert to fraction form
    257,742,875.21/355,686,088.91 = 140,269,613.63/x
  3. Step 3: Cross multiply
    257,742,875.21x = 355,686,088.91 × 140,269,613.63
  4. Step 4: Simplify right side
    257,742,875.21x = 49,891,950,262,491,744
  5. Step 5: Solve for x
    x = 49,891,950,262,491,744/257,742,875.21
  6. Step 6: Final answer
    x = 193,572,568.10

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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.