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Finding the Fourth Proportional to 1,128,200,652.40, 1,692,300,978.60 and 934,330,975.60

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Solution

The fourth proportional to 1,128,200,652.40, 1,692,300,978.60 and 934,330,975.60 is: 1,401,496,463.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,200,652.40 : 1,692,300,978.60 = 934,330,975.60 : x
  2. Step 2: Convert to fraction form
    1,128,200,652.40/1,692,300,978.60 = 934,330,975.60/x
  3. Step 3: Cross multiply
    1,128,200,652.40x = 1,692,300,978.60 × 934,330,975.60
  4. Step 4: Simplify right side
    1,128,200,652.40x = 1,581,169,224,344,172,800
  5. Step 5: Solve for x
    x = 1,581,169,224,344,172,800/1,128,200,652.40
  6. Step 6: Final answer
    x = 1,401,496,463.40

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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.