Home / 21,456,705.60-32,157,064.80-9,940,838.40

Finding the Fourth Proportional to 21,456,705.60, 32,157,064.80 and 9,940,838.40

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Solution

The fourth proportional to 21,456,705.60, 32,157,064.80 and 9,940,838.40 is: 14,898,288.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456,705.60 : 32,157,064.80 = 9,940,838.40 : x
  2. Step 2: Convert to fraction form
    21,456,705.60/32,157,064.80 = 9,940,838.40/x
  3. Step 3: Cross multiply
    21,456,705.60x = 32,157,064.80 × 9,940,838.40
  4. Step 4: Simplify right side
    21,456,705.60x = 319,668,184,595,128.31
  5. Step 5: Solve for x
    x = 319,668,184,595,128.31/21,456,705.60
  6. Step 6: Final answer
    x = 14,898,288.23

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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.