Home / 103,547,640.37-142,898,775.78-56,507,744.92

Finding the Fourth Proportional to 103,547,640.37, 142,898,775.78 and 56,507,744.92

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Solution

The fourth proportional to 103,547,640.37, 142,898,775.78 and 56,507,744.92 is: 77,982,342.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,547,640.37 : 142,898,775.78 = 56,507,744.92 : x
  2. Step 2: Convert to fraction form
    103,547,640.37/142,898,775.78 = 56,507,744.92/x
  3. Step 3: Cross multiply
    103,547,640.37x = 142,898,775.78 × 56,507,744.92
  4. Step 4: Simplify right side
    103,547,640.37x = 8,074,887,571,156,514
  5. Step 5: Solve for x
    x = 8,074,887,571,156,514/103,547,640.37
  6. Step 6: Final answer
    x = 77,982,342.64

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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.