Home / 71,009,987.60-106,514,981.40-51,878,111.60

Finding the Fourth Proportional to 71,009,987.60, 106,514,981.40 and 51,878,111.60

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Solution

The fourth proportional to 71,009,987.60, 106,514,981.40 and 51,878,111.60 is: 77,817,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,009,987.60 : 106,514,981.40 = 51,878,111.60 : x
  2. Step 2: Convert to fraction form
    71,009,987.60/106,514,981.40 = 51,878,111.60/x
  3. Step 3: Cross multiply
    71,009,987.60x = 106,514,981.40 × 51,878,111.60
  4. Step 4: Simplify right side
    71,009,987.60x = 5,525,796,092,141,125
  5. Step 5: Solve for x
    x = 5,525,796,092,141,125/71,009,987.60
  6. Step 6: Final answer
    x = 77,817,167.40

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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.