Home / 617,915,270.70-927,470,102.85-311,553,312.30

Finding the Fourth Proportional to 617,915,270.70, 927,470,102.85 and 311,553,312.30

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Solution

The fourth proportional to 617,915,270.70, 927,470,102.85 and 311,553,312.30 is: 467,631,075.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,915,270.70 : 927,470,102.85 = 311,553,312.30 : x
  2. Step 2: Convert to fraction form
    617,915,270.70/927,470,102.85 = 311,553,312.30/x
  3. Step 3: Cross multiply
    617,915,270.70x = 927,470,102.85 × 311,553,312.30
  4. Step 4: Simplify right side
    617,915,270.70x = 288,956,382,602,139,200
  5. Step 5: Solve for x
    x = 288,956,382,602,139,200/617,915,270.70
  6. Step 6: Final answer
    x = 467,631,075.49

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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.