Home / 328,187,907.40-492,356,510.70-191,803,088.20

Finding the Fourth Proportional to 328,187,907.40, 492,356,510.70 and 191,803,088.20

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Solution

The fourth proportional to 328,187,907.40, 492,356,510.70 and 191,803,088.20 is: 287,748,259.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,187,907.40 : 492,356,510.70 = 191,803,088.20 : x
  2. Step 2: Convert to fraction form
    328,187,907.40/492,356,510.70 = 191,803,088.20/x
  3. Step 3: Cross multiply
    328,187,907.40x = 492,356,510.70 × 191,803,088.20
  4. Step 4: Simplify right side
    328,187,907.40x = 94,435,499,247,636,336
  5. Step 5: Solve for x
    x = 94,435,499,247,636,336/328,187,907.40
  6. Step 6: Final answer
    x = 287,748,259.82

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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.