Home / 911,840,684.64-1,258,341,220.80-494,152,967.52

Finding the Fourth Proportional to 911,840,684.64, 1,258,341,220.80 and 494,152,967.52

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Solution

The fourth proportional to 911,840,684.64, 1,258,341,220.80 and 494,152,967.52 is: 681,931,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,840,684.64 : 1,258,341,220.80 = 494,152,967.52 : x
  2. Step 2: Convert to fraction form
    911,840,684.64/1,258,341,220.80 = 494,152,967.52/x
  3. Step 3: Cross multiply
    911,840,684.64x = 1,258,341,220.80 × 494,152,967.52
  4. Step 4: Simplify right side
    911,840,684.64x = 621,813,048,411,059,456
  5. Step 5: Solve for x
    x = 621,813,048,411,059,456/911,840,684.64
  6. Step 6: Final answer
    x = 681,931,678.29

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1.5x scale

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.