Home / 12,653,531,420.40-18,980,297,130.60-10,602,594,313.20

Finding the Fourth Proportional to 12,653,531,420.40, 18,980,297,130.60 and 10,602,594,313.20

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Solution

The fourth proportional to 12,653,531,420.40, 18,980,297,130.60 and 10,602,594,313.20 is: 15,903,891,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653,531,420.40 : 18,980,297,130.60 = 10,602,594,313.20 : x
  2. Step 2: Convert to fraction form
    12,653,531,420.40/18,980,297,130.60 = 10,602,594,313.20/x
  3. Step 3: Cross multiply
    12,653,531,420.40x = 18,980,297,130.60 × 10,602,594,313.20
  4. Step 4: Simplify right side
    12,653,531,420.40x = 201,240,390,419,745,832,960
  5. Step 5: Solve for x
    x = 201,240,390,419,745,832,960/12,653,531,420.40
  6. Step 6: Final answer
    x = 15,903,891,469.80

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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.