Home / 841,640,975.64-1,161,500,416.20-470,362,996.08

Finding the Fourth Proportional to 841,640,975.64, 1,161,500,416.20 and 470,362,996.08

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Solution

The fourth proportional to 841,640,975.64, 1,161,500,416.20 and 470,362,996.08 is: 649,120,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,640,975.64 : 1,161,500,416.20 = 470,362,996.08 : x
  2. Step 2: Convert to fraction form
    841,640,975.64/1,161,500,416.20 = 470,362,996.08/x
  3. Step 3: Cross multiply
    841,640,975.64x = 1,161,500,416.20 × 470,362,996.08
  4. Step 4: Simplify right side
    841,640,975.64x = 546,326,815,711,998,976
  5. Step 5: Solve for x
    x = 546,326,815,711,998,976/841,640,975.64
  6. Step 6: Final answer
    x = 649,120,980.95

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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.