Home / 406,903,429.28-561,509,646.72-230,703,280.40

Finding the Fourth Proportional to 406,903,429.28, 561,509,646.72 and 230,703,280.40

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Solution

The fourth proportional to 406,903,429.28, 561,509,646.72 and 230,703,280.40 is: 318,360,839.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,903,429.28 : 561,509,646.72 = 230,703,280.40 : x
  2. Step 2: Convert to fraction form
    406,903,429.28/561,509,646.72 = 230,703,280.40/x
  3. Step 3: Cross multiply
    406,903,429.28x = 561,509,646.72 × 230,703,280.40
  4. Step 4: Simplify right side
    406,903,429.28x = 129,542,117,474,549,104
  5. Step 5: Solve for x
    x = 129,542,117,474,549,104/406,903,429.28
  6. Step 6: Final answer
    x = 318,360,839.83

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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.