Home / 646,768,617.95-969,798,632.93-318,522,312.83

Finding the Fourth Proportional to 646,768,617.95, 969,798,632.93 and 318,522,312.83

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Solution

The fourth proportional to 646,768,617.95, 969,798,632.93 and 318,522,312.83 is: 477,608,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,768,617.95 : 969,798,632.93 = 318,522,312.83 : x
  2. Step 2: Convert to fraction form
    646,768,617.95/969,798,632.93 = 318,522,312.83/x
  3. Step 3: Cross multiply
    646,768,617.95x = 969,798,632.93 × 318,522,312.83
  4. Step 4: Simplify right side
    646,768,617.95x = 308,902,503,538,643,136
  5. Step 5: Solve for x
    x = 308,902,503,538,643,136/646,768,617.95
  6. Step 6: Final answer
    x = 477,608,985.60

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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.