Home / 687,455,671.08-1,031,173,409.88-169,886,097.66

Finding the Fourth Proportional to 687,455,671.08, 1,031,173,409.88 and 169,886,097.66

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Solution

The fourth proportional to 687,455,671.08, 1,031,173,409.88 and 169,886,097.66 is: 254,826,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,455,671.08 : 1,031,173,409.88 = 169,886,097.66 : x
  2. Step 2: Convert to fraction form
    687,455,671.08/1,031,173,409.88 = 169,886,097.66/x
  3. Step 3: Cross multiply
    687,455,671.08x = 1,031,173,409.88 × 169,886,097.66
  4. Step 4: Simplify right side
    687,455,671.08x = 175,182,026,615,268,896
  5. Step 5: Solve for x
    x = 175,182,026,615,268,896/687,455,671.08
  6. Step 6: Final answer
    x = 254,826,651.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.