Home / 191,894,476.40-287,084,363.81-145,342,064.71

Finding the Fourth Proportional to 191,894,476.40, 287,084,363.81 and 145,342,064.71

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Solution

The fourth proportional to 191,894,476.40, 287,084,363.81 and 145,342,064.71 is: 217,439,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,894,476.40 : 287,084,363.81 = 145,342,064.71 : x
  2. Step 2: Convert to fraction form
    191,894,476.40/287,084,363.81 = 145,342,064.71/x
  3. Step 3: Cross multiply
    191,894,476.40x = 287,084,363.81 × 145,342,064.71
  4. Step 4: Simplify right side
    191,894,476.40x = 41,725,434,180,657,784
  5. Step 5: Solve for x
    x = 41,725,434,180,657,784/191,894,476.40
  6. Step 6: Final answer
    x = 217,439,474.88

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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.