Home / 100,788,666.02-139,014,094.24-76,009,895.88

Finding the Fourth Proportional to 100,788,666.02, 139,014,094.24 and 76,009,895.88

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Solution

The fourth proportional to 100,788,666.02, 139,014,094.24 and 76,009,895.88 is: 104,837,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,788,666.02 : 139,014,094.24 = 76,009,895.88 : x
  2. Step 2: Convert to fraction form
    100,788,666.02/139,014,094.24 = 76,009,895.88/x
  3. Step 3: Cross multiply
    100,788,666.02x = 139,014,094.24 × 76,009,895.88
  4. Step 4: Simplify right side
    100,788,666.02x = 10,566,446,828,180,680
  5. Step 5: Solve for x
    x = 10,566,446,828,180,680/100,788,666.02
  6. Step 6: Final answer
    x = 104,837,649.37

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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.