Home / 377,421,196.41-520,836,284.74-207,872,178.36

Finding the Fourth Proportional to 377,421,196.41, 520,836,284.74 and 207,872,178.36

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Solution

The fourth proportional to 377,421,196.41, 520,836,284.74 and 207,872,178.36 is: 286,860,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,421,196.41 : 520,836,284.74 = 207,872,178.36 : x
  2. Step 2: Convert to fraction form
    377,421,196.41/520,836,284.74 = 207,872,178.36/x
  3. Step 3: Cross multiply
    377,421,196.41x = 520,836,284.74 × 207,872,178.36
  4. Step 4: Simplify right side
    377,421,196.41x = 108,267,373,075,744,768
  5. Step 5: Solve for x
    x = 108,267,373,075,744,768/377,421,196.41
  6. Step 6: Final answer
    x = 286,860,870.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.