Home / 382,020,529,140.72-572,815,772,288.60-126,913,338,346.16

Finding the Fourth Proportional to 382,020,529,140.72, 572,815,772,288.60 and 126,913,338,346.16

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Solution

The fourth proportional to 382,020,529,140.72, 572,815,772,288.60 and 126,913,338,346.16 is: 190,298,573,958.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,020,529,140.72 : 572,815,772,288.60 = 126,913,338,346.16 : x
  2. Step 2: Convert to fraction form
    382,020,529,140.72/572,815,772,288.60 = 126,913,338,346.16/x
  3. Step 3: Cross multiply
    382,020,529,140.72x = 572,815,772,288.60 × 126,913,338,346.16
  4. Step 4: Simplify right side
    382,020,529,140.72x = 72,697,961,918,480,032,727,040
  5. Step 5: Solve for x
    x = 72,697,961,918,480,032,727,040/382,020,529,140.72
  6. Step 6: Final answer
    x = 190,298,573,958.84

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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.