Home / 103,547,649.36-142,898,788.20-56,507,753.92

Finding the Fourth Proportional to 103,547,649.36, 142,898,788.20 and 56,507,753.92

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Solution

The fourth proportional to 103,547,649.36, 142,898,788.20 and 56,507,753.92 is: 77,982,355.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,547,649.36 : 142,898,788.20 = 56,507,753.92 : x
  2. Step 2: Convert to fraction form
    103,547,649.36/142,898,788.20 = 56,507,753.92/x
  3. Step 3: Cross multiply
    103,547,649.36x = 142,898,788.20 × 56,507,753.92
  4. Step 4: Simplify right side
    103,547,649.36x = 8,074,889,559,071,799
  5. Step 5: Solve for x
    x = 8,074,889,559,071,799/103,547,649.36
  6. Step 6: Final answer
    x = 77,982,355.07

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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.