Home / 354,295,358.40-531,443,037.60-243,330,477.60

Finding the Fourth Proportional to 354,295,358.40, 531,443,037.60 and 243,330,477.60

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Solution

The fourth proportional to 354,295,358.40, 531,443,037.60 and 243,330,477.60 is: 364,995,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,295,358.40 : 531,443,037.60 = 243,330,477.60 : x
  2. Step 2: Convert to fraction form
    354,295,358.40/531,443,037.60 = 243,330,477.60/x
  3. Step 3: Cross multiply
    354,295,358.40x = 531,443,037.60 × 243,330,477.60
  4. Step 4: Simplify right side
    354,295,358.40x = 129,316,288,156,402,768
  5. Step 5: Solve for x
    x = 129,316,288,156,402,768/354,295,358.40
  6. Step 6: Final answer
    x = 364,995,716.40

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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.