Home / 660,158,163.20-990,237,244.80-634,648,995.20

Finding the Fourth Proportional to 660,158,163.20, 990,237,244.80 and 634,648,995.20

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Solution

The fourth proportional to 660,158,163.20, 990,237,244.80 and 634,648,995.20 is: 951,973,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,158,163.20 : 990,237,244.80 = 634,648,995.20 : x
  2. Step 2: Convert to fraction form
    660,158,163.20/990,237,244.80 = 634,648,995.20/x
  3. Step 3: Cross multiply
    660,158,163.20x = 990,237,244.80 × 634,648,995.20
  4. Step 4: Simplify right side
    660,158,163.20x = 628,453,072,421,936,384
  5. Step 5: Solve for x
    x = 628,453,072,421,936,384/660,158,163.20
  6. Step 6: Final answer
    x = 951,973,492.80

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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.