Home / 7,128,000.70-10,692,001.05-5,784,307.90

Finding the Fourth Proportional to 7,128,000.70, 10,692,001.05 and 5,784,307.90

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Solution

The fourth proportional to 7,128,000.70, 10,692,001.05 and 5,784,307.90 is: 8,676,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,000.70 : 10,692,001.05 = 5,784,307.90 : x
  2. Step 2: Convert to fraction form
    7,128,000.70/10,692,001.05 = 5,784,307.90/x
  3. Step 3: Cross multiply
    7,128,000.70x = 10,692,001.05 × 5,784,307.90
  4. Step 4: Simplify right side
    7,128,000.70x = 61,845,826,140,323.30
  5. Step 5: Solve for x
    x = 61,845,826,140,323.30/7,128,000.70
  6. Step 6: Final answer
    x = 8,676,461.85

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1.5x scale

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.