Home / 85,778,000.70-128,635,853.85-46,945,152.42

Finding the Fourth Proportional to 85,778,000.70, 128,635,853.85 and 46,945,152.42

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Solution

The fourth proportional to 85,778,000.70, 128,635,853.85 and 46,945,152.42 is: 70,400,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,778,000.70 : 128,635,853.85 = 46,945,152.42 : x
  2. Step 2: Convert to fraction form
    85,778,000.70/128,635,853.85 = 46,945,152.42/x
  3. Step 3: Cross multiply
    85,778,000.70x = 128,635,853.85 × 46,945,152.42
  4. Step 4: Simplify right side
    85,778,000.70x = 6,038,829,765,665,094
  5. Step 5: Solve for x
    x = 6,038,829,765,665,094/85,778,000.70
  6. Step 6: Final answer
    x = 70,400,682.18

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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.