Home / 646,706,812.60-970,060,218.90-186,659,990.20

Finding the Fourth Proportional to 646,706,812.60, 970,060,218.90 and 186,659,990.20

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Solution

The fourth proportional to 646,706,812.60, 970,060,218.90 and 186,659,990.20 is: 279,989,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,706,812.60 : 970,060,218.90 = 186,659,990.20 : x
  2. Step 2: Convert to fraction form
    646,706,812.60/970,060,218.90 = 186,659,990.20/x
  3. Step 3: Cross multiply
    646,706,812.60x = 970,060,218.90 × 186,659,990.20
  4. Step 4: Simplify right side
    646,706,812.60x = 181,071,430,953,283,840
  5. Step 5: Solve for x
    x = 181,071,430,953,283,840/646,706,812.60
  6. Step 6: Final answer
    x = 279,989,985.30

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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.