Home / 485,105,061.60-727,657,592.40-193,828,154.40

Finding the Fourth Proportional to 485,105,061.60, 727,657,592.40 and 193,828,154.40

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Solution

The fourth proportional to 485,105,061.60, 727,657,592.40 and 193,828,154.40 is: 290,742,231.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,105,061.60 : 727,657,592.40 = 193,828,154.40 : x
  2. Step 2: Convert to fraction form
    485,105,061.60/727,657,592.40 = 193,828,154.40/x
  3. Step 3: Cross multiply
    485,105,061.60x = 727,657,592.40 × 193,828,154.40
  4. Step 4: Simplify right side
    485,105,061.60x = 141,040,528,170,039,472
  5. Step 5: Solve for x
    x = 141,040,528,170,039,472/485,105,061.60
  6. Step 6: Final answer
    x = 290,742,231.60

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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.