Home / 630,078,654.40-945,117,981.60-170,016,085.60

Finding the Fourth Proportional to 630,078,654.40, 945,117,981.60 and 170,016,085.60

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Solution

The fourth proportional to 630,078,654.40, 945,117,981.60 and 170,016,085.60 is: 255,024,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,078,654.40 : 945,117,981.60 = 170,016,085.60 : x
  2. Step 2: Convert to fraction form
    630,078,654.40/945,117,981.60 = 170,016,085.60/x
  3. Step 3: Cross multiply
    630,078,654.40x = 945,117,981.60 × 170,016,085.60
  4. Step 4: Simplify right side
    630,078,654.40x = 160,685,259,661,804,832
  5. Step 5: Solve for x
    x = 160,685,259,661,804,832/630,078,654.40
  6. Step 6: Final answer
    x = 255,024,128.40

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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.