Home / 72,827,661.51-109,228,330.65-20,999,521.35

Finding the Fourth Proportional to 72,827,661.51, 109,228,330.65 and 20,999,521.35

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Solution

The fourth proportional to 72,827,661.51, 109,228,330.65 and 20,999,521.35 is: 31,495,486.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,827,661.51 : 109,228,330.65 = 20,999,521.35 : x
  2. Step 2: Convert to fraction form
    72,827,661.51/109,228,330.65 = 20,999,521.35/x
  3. Step 3: Cross multiply
    72,827,661.51x = 109,228,330.65 × 20,999,521.35
  4. Step 4: Simplify right side
    72,827,661.51x = 2,293,742,661,509,534.50
  5. Step 5: Solve for x
    x = 2,293,742,661,509,534.50/72,827,661.51
  6. Step 6: Final answer
    x = 31,495,486.93

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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.