Home / 392,688,128.40-589,032,192.60-283,849,011.60

Finding the Fourth Proportional to 392,688,128.40, 589,032,192.60 and 283,849,011.60

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Solution

The fourth proportional to 392,688,128.40, 589,032,192.60 and 283,849,011.60 is: 425,773,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,688,128.40 : 589,032,192.60 = 283,849,011.60 : x
  2. Step 2: Convert to fraction form
    392,688,128.40/589,032,192.60 = 283,849,011.60/x
  3. Step 3: Cross multiply
    392,688,128.40x = 589,032,192.60 × 283,849,011.60
  4. Step 4: Simplify right side
    392,688,128.40x = 167,196,205,670,090,848
  5. Step 5: Solve for x
    x = 167,196,205,670,090,848/392,688,128.40
  6. Step 6: Final answer
    x = 425,773,517.40

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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.