Home / 28,512,011.80-42,768,017.70-7,236,875.80

Finding the Fourth Proportional to 28,512,011.80, 42,768,017.70 and 7,236,875.80

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Solution

The fourth proportional to 28,512,011.80, 42,768,017.70 and 7,236,875.80 is: 10,855,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,011.80 : 42,768,017.70 = 7,236,875.80 : x
  2. Step 2: Convert to fraction form
    28,512,011.80/42,768,017.70 = 7,236,875.80/x
  3. Step 3: Cross multiply
    28,512,011.80x = 42,768,017.70 × 7,236,875.80
  4. Step 4: Simplify right side
    28,512,011.80x = 309,506,832,307,101.69
  5. Step 5: Solve for x
    x = 309,506,832,307,101.69/28,512,011.80
  6. Step 6: Final answer
    x = 10,855,313.70

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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.