Home / 145,772,391.84-218,713,815-87,520,750.20

Finding the Fourth Proportional to 145,772,391.84, 218,713,815 and 87,520,750.20

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Solution

The fourth proportional to 145,772,391.84, 218,713,815 and 87,520,750.20 is: 131,314,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,772,391.84 : 218,713,815 = 87,520,750.20 : x
  2. Step 2: Convert to fraction form
    145,772,391.84/218,713,815 = 87,520,750.20/x
  3. Step 3: Cross multiply
    145,772,391.84x = 218,713,815 × 87,520,750.20
  4. Step 4: Simplify right side
    145,772,391.84x = 19,141,997,167,904,012
  5. Step 5: Solve for x
    x = 19,141,997,167,904,012/145,772,391.84
  6. Step 6: Final answer
    x = 131,314,283.36

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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.