Home / 72,602,750.72-100,190,510.40-39,563,291.84

Finding the Fourth Proportional to 72,602,750.72, 100,190,510.40 and 39,563,291.84

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Solution

The fourth proportional to 72,602,750.72, 100,190,510.40 and 39,563,291.84 is: 54,596,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,602,750.72 : 100,190,510.40 = 39,563,291.84 : x
  2. Step 2: Convert to fraction form
    72,602,750.72/100,190,510.40 = 39,563,291.84/x
  3. Step 3: Cross multiply
    72,602,750.72x = 100,190,510.40 × 39,563,291.84
  4. Step 4: Simplify right side
    72,602,750.72x = 3,963,866,402,553,755.50
  5. Step 5: Solve for x
    x = 3,963,866,402,553,755.50/72,602,750.72
  6. Step 6: Final answer
    x = 54,596,642.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.