Home / 485,105,097.60-727,657,646.40-193,828,190.40

Finding the Fourth Proportional to 485,105,097.60, 727,657,646.40 and 193,828,190.40

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Solution

The fourth proportional to 485,105,097.60, 727,657,646.40 and 193,828,190.40 is: 290,742,285.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,105,097.60 : 727,657,646.40 = 193,828,190.40 : x
  2. Step 2: Convert to fraction form
    485,105,097.60/727,657,646.40 = 193,828,190.40/x
  3. Step 3: Cross multiply
    485,105,097.60x = 727,657,646.40 × 193,828,190.40
  4. Step 4: Simplify right side
    485,105,097.60x = 141,040,564,832,435,072
  5. Step 5: Solve for x
    x = 141,040,564,832,435,072/485,105,097.60
  6. Step 6: Final answer
    x = 290,742,285.60

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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.