Home / 430,464,562.40-645,696,843.60-406,656,005.60

Finding the Fourth Proportional to 430,464,562.40, 645,696,843.60 and 406,656,005.60

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Solution

The fourth proportional to 430,464,562.40, 645,696,843.60 and 406,656,005.60 is: 609,984,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,464,562.40 : 645,696,843.60 = 406,656,005.60 : x
  2. Step 2: Convert to fraction form
    430,464,562.40/645,696,843.60 = 406,656,005.60/x
  3. Step 3: Cross multiply
    430,464,562.40x = 645,696,843.60 × 406,656,005.60
  4. Step 4: Simplify right side
    430,464,562.40x = 262,576,499,246,903,936
  5. Step 5: Solve for x
    x = 262,576,499,246,903,936/430,464,562.40
  6. Step 6: Final answer
    x = 609,984,008.40

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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.