Home / 646,706,632.10-970,059,948.15-186,659,809.70

Finding the Fourth Proportional to 646,706,632.10, 970,059,948.15 and 186,659,809.70

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Solution

The fourth proportional to 646,706,632.10, 970,059,948.15 and 186,659,809.70 is: 279,989,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,706,632.10 : 970,059,948.15 = 186,659,809.70 : x
  2. Step 2: Convert to fraction form
    646,706,632.10/970,059,948.15 = 186,659,809.70/x
  3. Step 3: Cross multiply
    646,706,632.10x = 970,059,948.15 × 186,659,809.70
  4. Step 4: Simplify right side
    646,706,632.10x = 181,071,205,319,270,848
  5. Step 5: Solve for x
    x = 181,071,205,319,270,848/646,706,632.10
  6. Step 6: Final answer
    x = 279,989,714.55

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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.