Home / 319,318,388.73-478,602,055.89-144,237,070.31

Finding the Fourth Proportional to 319,318,388.73, 478,602,055.89 and 144,237,070.31

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Solution

The fourth proportional to 319,318,388.73, 478,602,055.89 and 144,237,070.31 is: 216,185,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,318,388.73 : 478,602,055.89 = 144,237,070.31 : x
  2. Step 2: Convert to fraction form
    319,318,388.73/478,602,055.89 = 144,237,070.31/x
  3. Step 3: Cross multiply
    319,318,388.73x = 478,602,055.89 × 144,237,070.31
  4. Step 4: Simplify right side
    319,318,388.73x = 69,032,158,383,523,472
  5. Step 5: Solve for x
    x = 69,032,158,383,523,472/319,318,388.73
  6. Step 6: Final answer
    x = 216,185,978.70

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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.