Home / 278,316,257.60-417,474,386.40-262,443,886.40

Finding the Fourth Proportional to 278,316,257.60, 417,474,386.40 and 262,443,886.40

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Solution

The fourth proportional to 278,316,257.60, 417,474,386.40 and 262,443,886.40 is: 393,665,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316,257.60 : 417,474,386.40 = 262,443,886.40 : x
  2. Step 2: Convert to fraction form
    278,316,257.60/417,474,386.40 = 262,443,886.40/x
  3. Step 3: Cross multiply
    278,316,257.60x = 417,474,386.40 × 262,443,886.40
  4. Step 4: Simplify right side
    278,316,257.60x = 109,563,600,439,271,296
  5. Step 5: Solve for x
    x = 109,563,600,439,271,296/278,316,257.60
  6. Step 6: Final answer
    x = 393,665,829.60

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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.