Home / 145,282,688,009.60-217,924,032,014.40-66,765,468,905.60

Finding the Fourth Proportional to 145,282,688,009.60, 217,924,032,014.40 and 66,765,468,905.60

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Solution

The fourth proportional to 145,282,688,009.60, 217,924,032,014.40 and 66,765,468,905.60 is: 100,148,203,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,282,688,009.60 : 217,924,032,014.40 = 66,765,468,905.60 : x
  2. Step 2: Convert to fraction form
    145,282,688,009.60/217,924,032,014.40 = 66,765,468,905.60/x
  3. Step 3: Cross multiply
    145,282,688,009.60x = 217,924,032,014.40 × 66,765,468,905.60
  4. Step 4: Simplify right side
    145,282,688,009.60x = 14,549,800,183,240,400,568,320
  5. Step 5: Solve for x
    x = 14,549,800,183,240,400,568,320/145,282,688,009.60
  6. Step 6: Final answer
    x = 100,148,203,358.40

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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.