Home / 113,623,404.60-170,435,106.90-78,855,353.40

Finding the Fourth Proportional to 113,623,404.60, 170,435,106.90 and 78,855,353.40

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Solution

The fourth proportional to 113,623,404.60, 170,435,106.90 and 78,855,353.40 is: 118,283,030.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,623,404.60 : 170,435,106.90 = 78,855,353.40 : x
  2. Step 2: Convert to fraction form
    113,623,404.60/170,435,106.90 = 78,855,353.40/x
  3. Step 3: Cross multiply
    113,623,404.60x = 170,435,106.90 × 78,855,353.40
  4. Step 4: Simplify right side
    113,623,404.60x = 13,439,720,586,366,280
  5. Step 5: Solve for x
    x = 13,439,720,586,366,280/113,623,404.60
  6. Step 6: Final answer
    x = 118,283,030.10

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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.