Home / 1,242,865,358.40-1,864,298,037.60-517,271,246.40

Finding the Fourth Proportional to 1,242,865,358.40, 1,864,298,037.60 and 517,271,246.40

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Solution

The fourth proportional to 1,242,865,358.40, 1,864,298,037.60 and 517,271,246.40 is: 775,906,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,865,358.40 : 1,864,298,037.60 = 517,271,246.40 : x
  2. Step 2: Convert to fraction form
    1,242,865,358.40/1,864,298,037.60 = 517,271,246.40/x
  3. Step 3: Cross multiply
    1,242,865,358.40x = 1,864,298,037.60 × 517,271,246.40
  4. Step 4: Simplify right side
    1,242,865,358.40x = 964,347,769,570,425,984
  5. Step 5: Solve for x
    x = 964,347,769,570,425,984/1,242,865,358.40
  6. Step 6: Final answer
    x = 775,906,869.60

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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.