Home / 152,004,489.84-209,761,091.10-90,088,070.40

Finding the Fourth Proportional to 152,004,489.84, 209,761,091.10 and 90,088,070.40

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Solution

The fourth proportional to 152,004,489.84, 209,761,091.10 and 90,088,070.40 is: 124,318,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,004,489.84 : 209,761,091.10 = 90,088,070.40 : x
  2. Step 2: Convert to fraction form
    152,004,489.84/209,761,091.10 = 90,088,070.40/x
  3. Step 3: Cross multiply
    152,004,489.84x = 209,761,091.10 × 90,088,070.40
  4. Step 4: Simplify right side
    152,004,489.84x = 18,896,971,942,197,616
  5. Step 5: Solve for x
    x = 18,896,971,942,197,616/152,004,489.84
  6. Step 6: Final answer
    x = 124,318,511.66

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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.