Home / 638,893,947.30-881,713,968.56-360,333,832.74

Finding the Fourth Proportional to 638,893,947.30, 881,713,968.56 and 360,333,832.74

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Solution

The fourth proportional to 638,893,947.30, 881,713,968.56 and 360,333,832.74 is: 497,283,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,893,947.30 : 881,713,968.56 = 360,333,832.74 : x
  2. Step 2: Convert to fraction form
    638,893,947.30/881,713,968.56 = 360,333,832.74/x
  3. Step 3: Cross multiply
    638,893,947.30x = 881,713,968.56 × 360,333,832.74
  4. Step 4: Simplify right side
    638,893,947.30x = 317,711,373,671,620,672
  5. Step 5: Solve for x
    x = 317,711,373,671,620,672/638,893,947.30
  6. Step 6: Final answer
    x = 497,283,430.24

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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.