Home / 651,785,719.32-899,436,912.93-369,547,147.31

Finding the Fourth Proportional to 651,785,719.32, 899,436,912.93 and 369,547,147.31

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Solution

The fourth proportional to 651,785,719.32, 899,436,912.93 and 369,547,147.31 is: 509,959,539.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,785,719.32 : 899,436,912.93 = 369,547,147.31 : x
  2. Step 2: Convert to fraction form
    651,785,719.32/899,436,912.93 = 369,547,147.31/x
  3. Step 3: Cross multiply
    651,785,719.32x = 899,436,912.93 × 369,547,147.31
  4. Step 4: Simplify right side
    651,785,719.32x = 332,384,345,354,097,152
  5. Step 5: Solve for x
    x = 332,384,345,354,097,152/651,785,719.32
  6. Step 6: Final answer
    x = 509,959,539.62

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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.