Home / 840,342,887.36-1,159,866,676.32-492,774,349.76

Finding the Fourth Proportional to 840,342,887.36, 1,159,866,676.32 and 492,774,349.76

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Solution

The fourth proportional to 840,342,887.36, 1,159,866,676.32 and 492,774,349.76 is: 680,142,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,342,887.36 : 1,159,866,676.32 = 492,774,349.76 : x
  2. Step 2: Convert to fraction form
    840,342,887.36/1,159,866,676.32 = 492,774,349.76/x
  3. Step 3: Cross multiply
    840,342,887.36x = 1,159,866,676.32 × 492,774,349.76
  4. Step 4: Simplify right side
    840,342,887.36x = 571,552,547,231,880,320
  5. Step 5: Solve for x
    x = 571,552,547,231,880,320/840,342,887.36
  6. Step 6: Final answer
    x = 680,142,065.61

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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.