Home / 96,768,009.60-145,152,014.40-85,430,601.60

Finding the Fourth Proportional to 96,768,009.60, 145,152,014.40 and 85,430,601.60

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Solution

The fourth proportional to 96,768,009.60, 145,152,014.40 and 85,430,601.60 is: 128,145,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,768,009.60 : 145,152,014.40 = 85,430,601.60 : x
  2. Step 2: Convert to fraction form
    96,768,009.60/145,152,014.40 = 85,430,601.60/x
  3. Step 3: Cross multiply
    96,768,009.60x = 145,152,014.40 × 85,430,601.60
  4. Step 4: Simplify right side
    96,768,009.60x = 12,400,423,913,643,862
  5. Step 5: Solve for x
    x = 12,400,423,913,643,862/96,768,009.60
  6. Step 6: Final answer
    x = 128,145,902.40

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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.