Home / 257,363,041,025.76-386,100,408,108.96-78,284,373,526.32

Finding the Fourth Proportional to 257,363,041,025.76, 386,100,408,108.96 and 78,284,373,526.32

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Solution

The fourth proportional to 257,363,041,025.76, 386,100,408,108.96 and 78,284,373,526.32 is: 117,443,547,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,363,041,025.76 : 386,100,408,108.96 = 78,284,373,526.32 : x
  2. Step 2: Convert to fraction form
    257,363,041,025.76/386,100,408,108.96 = 78,284,373,526.32/x
  3. Step 3: Cross multiply
    257,363,041,025.76x = 386,100,408,108.96 × 78,284,373,526.32
  4. Step 4: Simplify right side
    257,363,041,025.76x = 30,225,628,567,066,422,280,192
  5. Step 5: Solve for x
    x = 30,225,628,567,066,422,280,192/257,363,041,025.76
  6. Step 6: Final answer
    x = 117,443,547,630.61

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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.