Home / 872,623,995.58-1,308,927,366.94-399,788,917.82

Finding the Fourth Proportional to 872,623,995.58, 1,308,927,366.94 and 399,788,917.82

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Solution

The fourth proportional to 872,623,995.58, 1,308,927,366.94 and 399,788,917.82 is: 599,679,424.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,623,995.58 : 1,308,927,366.94 = 399,788,917.82 : x
  2. Step 2: Convert to fraction form
    872,623,995.58/1,308,927,366.94 = 399,788,917.82/x
  3. Step 3: Cross multiply
    872,623,995.58x = 1,308,927,366.94 × 399,788,917.82
  4. Step 4: Simplify right side
    872,623,995.58x = 523,294,655,533,924,672
  5. Step 5: Solve for x
    x = 523,294,655,533,924,672/872,623,995.58
  6. Step 6: Final answer
    x = 599,679,424.57

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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.