Home / 1,212,569,720.72-1,673,368,008.02-711,140,159.02

Finding the Fourth Proportional to 1,212,569,720.72, 1,673,368,008.02 and 711,140,159.02

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Solution

The fourth proportional to 1,212,569,720.72, 1,673,368,008.02 and 711,140,159.02 is: 981,386,200.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,569,720.72 : 1,673,368,008.02 = 711,140,159.02 : x
  2. Step 2: Convert to fraction form
    1,212,569,720.72/1,673,368,008.02 = 711,140,159.02/x
  3. Step 3: Cross multiply
    1,212,569,720.72x = 1,673,368,008.02 × 711,140,159.02
  4. Step 4: Simplify right side
    1,212,569,720.72x = 1,189,999,191,322,323,456
  5. Step 5: Solve for x
    x = 1,189,999,191,322,323,456/1,212,569,720.72
  6. Step 6: Final answer
    x = 981,386,200.72

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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.