Home / 191,843,146.80-287,434,045.80-89,397,068.40

Finding the Fourth Proportional to 191,843,146.80, 287,434,045.80 and 89,397,068.40

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Solution

The fourth proportional to 191,843,146.80, 287,434,045.80 and 89,397,068.40 is: 133,941,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,843,146.80 : 287,434,045.80 = 89,397,068.40 : x
  2. Step 2: Convert to fraction form
    191,843,146.80/287,434,045.80 = 89,397,068.40/x
  3. Step 3: Cross multiply
    191,843,146.80x = 287,434,045.80 × 89,397,068.40
  4. Step 4: Simplify right side
    191,843,146.80x = 25,695,761,052,871,336
  5. Step 5: Solve for x
    x = 25,695,761,052,871,336/191,843,146.80
  6. Step 6: Final answer
    x = 133,941,511.50

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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.