Home / 781,258,584.75-1,176,564,638.61-711,522,896.73

Finding the Fourth Proportional to 781,258,584.75, 1,176,564,638.61 and 711,522,896.73

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Solution

The fourth proportional to 781,258,584.75, 1,176,564,638.61 and 711,522,896.73 is: 1,071,543,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,258,584.75 : 1,176,564,638.61 = 711,522,896.73 : x
  2. Step 2: Convert to fraction form
    781,258,584.75/1,176,564,638.61 = 711,522,896.73/x
  3. Step 3: Cross multiply
    781,258,584.75x = 1,176,564,638.61 × 711,522,896.73
  4. Step 4: Simplify right side
    781,258,584.75x = 837,152,679,853,872,768
  5. Step 5: Solve for x
    x = 837,152,679,853,872,768/781,258,584.75
  6. Step 6: Final answer
    x = 1,071,543,655.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.