Home / 392,688,117.60-589,032,176.40-134,195,215.20

Finding the Fourth Proportional to 392,688,117.60, 589,032,176.40 and 134,195,215.20

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Solution

The fourth proportional to 392,688,117.60, 589,032,176.40 and 134,195,215.20 is: 201,292,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,688,117.60 : 589,032,176.40 = 134,195,215.20 : x
  2. Step 2: Convert to fraction form
    392,688,117.60/589,032,176.40 = 134,195,215.20/x
  3. Step 3: Cross multiply
    392,688,117.60x = 589,032,176.40 × 134,195,215.20
  4. Step 4: Simplify right side
    392,688,117.60x = 79,045,299,671,722,352
  5. Step 5: Solve for x
    x = 79,045,299,671,722,352/392,688,117.60
  6. Step 6: Final answer
    x = 201,292,822.80

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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.