Home / 1,678,969,349.60-2,518,776,825.60-643,749,497.60

Finding the Fourth Proportional to 1,678,969,349.60, 2,518,776,825.60 and 643,749,497.60

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Solution

The fourth proportional to 1,678,969,349.60, 2,518,776,825.60 and 643,749,497.60 is: 965,748,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,969,349.60 : 2,518,776,825.60 = 643,749,497.60 : x
  2. Step 2: Convert to fraction form
    1,678,969,349.60/2,518,776,825.60 = 643,749,497.60/x
  3. Step 3: Cross multiply
    1,678,969,349.60x = 2,518,776,825.60 × 643,749,497.60
  4. Step 4: Simplify right side
    1,678,969,349.60x = 1,621,461,316,046,522,880
  5. Step 5: Solve for x
    x = 1,621,461,316,046,522,880/1,678,969,349.60
  6. Step 6: Final answer
    x = 965,748,014.66

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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.