Home / 145,440,497.70-218,160,746.55-91,020,939.30

Finding the Fourth Proportional to 145,440,497.70, 218,160,746.55 and 91,020,939.30

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Solution

The fourth proportional to 145,440,497.70, 218,160,746.55 and 91,020,939.30 is: 136,531,408.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,440,497.70 : 218,160,746.55 = 91,020,939.30 : x
  2. Step 2: Convert to fraction form
    145,440,497.70/218,160,746.55 = 91,020,939.30/x
  3. Step 3: Cross multiply
    145,440,497.70x = 218,160,746.55 × 91,020,939.30
  4. Step 4: Simplify right side
    145,440,497.70x = 19,857,196,069,370,236
  5. Step 5: Solve for x
    x = 19,857,196,069,370,236/145,440,497.70
  6. Step 6: Final answer
    x = 136,531,408.95

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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.