Home / 603,226,257.60-904,839,386.40-427,212,998.40

Finding the Fourth Proportional to 603,226,257.60, 904,839,386.40 and 427,212,998.40

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Solution

The fourth proportional to 603,226,257.60, 904,839,386.40 and 427,212,998.40 is: 640,819,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,226,257.60 : 904,839,386.40 = 427,212,998.40 : x
  2. Step 2: Convert to fraction form
    603,226,257.60/904,839,386.40 = 427,212,998.40/x
  3. Step 3: Cross multiply
    603,226,257.60x = 904,839,386.40 × 427,212,998.40
  4. Step 4: Simplify right side
    603,226,257.60x = 386,559,147,334,360,128
  5. Step 5: Solve for x
    x = 386,559,147,334,360,128/603,226,257.60
  6. Step 6: Final answer
    x = 640,819,497.60

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1.5x scale

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.