Home / 687,455,656.50-1,031,173,388.08-169,886,083.08

Finding the Fourth Proportional to 687,455,656.50, 1,031,173,388.08 and 169,886,083.08

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Solution

The fourth proportional to 687,455,656.50, 1,031,173,388.08 and 169,886,083.08 is: 254,826,629.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,455,656.50 : 1,031,173,388.08 = 169,886,083.08 : x
  2. Step 2: Convert to fraction form
    687,455,656.50/1,031,173,388.08 = 169,886,083.08/x
  3. Step 3: Cross multiply
    687,455,656.50x = 1,031,173,388.08 × 169,886,083.08
  4. Step 4: Simplify right side
    687,455,656.50x = 175,182,007,877,243,968
  5. Step 5: Solve for x
    x = 175,182,007,877,243,968/687,455,656.50
  6. Step 6: Final answer
    x = 254,826,629.50

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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.