Home / 5,280,303,985.90-7,920,455,978.85-2,659,095,256.30

Finding the Fourth Proportional to 5,280,303,985.90, 7,920,455,978.85 and 2,659,095,256.30

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Solution

The fourth proportional to 5,280,303,985.90, 7,920,455,978.85 and 2,659,095,256.30 is: 3,988,642,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,303,985.90 : 7,920,455,978.85 = 2,659,095,256.30 : x
  2. Step 2: Convert to fraction form
    5,280,303,985.90/7,920,455,978.85 = 2,659,095,256.30/x
  3. Step 3: Cross multiply
    5,280,303,985.90x = 7,920,455,978.85 × 2,659,095,256.30
  4. Step 4: Simplify right side
    5,280,303,985.90x = 21,061,246,921,093,009,408
  5. Step 5: Solve for x
    x = 21,061,246,921,093,009,408/5,280,303,985.90
  6. Step 6: Final answer
    x = 3,988,642,884.45

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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.