Home / 10,434,653,618.40-15,651,980,427.60-7,128,665,445.60

Finding the Fourth Proportional to 10,434,653,618.40, 15,651,980,427.60 and 7,128,665,445.60

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Solution

The fourth proportional to 10,434,653,618.40, 15,651,980,427.60 and 7,128,665,445.60 is: 10,692,998,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434,653,618.40 : 15,651,980,427.60 = 7,128,665,445.60 : x
  2. Step 2: Convert to fraction form
    10,434,653,618.40/15,651,980,427.60 = 7,128,665,445.60/x
  3. Step 3: Cross multiply
    10,434,653,618.40x = 15,651,980,427.60 × 7,128,665,445.60
  4. Step 4: Simplify right side
    10,434,653,618.40x = 111,577,732,029,439,639,552
  5. Step 5: Solve for x
    x = 111,577,732,029,439,639,552/10,434,653,618.40
  6. Step 6: Final answer
    x = 10,692,998,168.40

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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.