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Finding the Fourth Proportional to 788,385,266.22, 1,087,978,716.77 and 435,984,967.65

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Solution

The fourth proportional to 788,385,266.22, 1,087,978,716.77 and 435,984,967.65 is: 601,663,153.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,385,266.22 : 1,087,978,716.77 = 435,984,967.65 : x
  2. Step 2: Convert to fraction form
    788,385,266.22/1,087,978,716.77 = 435,984,967.65/x
  3. Step 3: Cross multiply
    788,385,266.22x = 1,087,978,716.77 × 435,984,967.65
  4. Step 4: Simplify right side
    788,385,266.22x = 474,342,365,632,677,056
  5. Step 5: Solve for x
    x = 474,342,365,632,677,056/788,385,266.22
  6. Step 6: Final answer
    x = 601,663,153.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.