Home / 72,255,988.17-99,713,362.40-39,216,237.80

Finding the Fourth Proportional to 72,255,988.17, 99,713,362.40 and 39,216,237.80

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Solution

The fourth proportional to 72,255,988.17, 99,713,362.40 and 39,216,237.80 is: 54,118,461.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,255,988.17 : 99,713,362.40 = 39,216,237.80 : x
  2. Step 2: Convert to fraction form
    72,255,988.17/99,713,362.40 = 39,216,237.80/x
  3. Step 3: Cross multiply
    72,255,988.17x = 99,713,362.40 × 39,216,237.80
  4. Step 4: Simplify right side
    72,255,988.17x = 3,910,382,931,168,392
  5. Step 5: Solve for x
    x = 3,910,382,931,168,392/72,255,988.17
  6. Step 6: Final answer
    x = 54,118,461.74

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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.