Home / 641,968,064.88-885,900,939.52-377,667,075.84

Finding the Fourth Proportional to 641,968,064.88, 885,900,939.52 and 377,667,075.84

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Solution

The fourth proportional to 641,968,064.88, 885,900,939.52 and 377,667,075.84 is: 521,171,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,968,064.88 : 885,900,939.52 = 377,667,075.84 : x
  2. Step 2: Convert to fraction form
    641,968,064.88/885,900,939.52 = 377,667,075.84/x
  3. Step 3: Cross multiply
    641,968,064.88x = 885,900,939.52 × 377,667,075.84
  4. Step 4: Simplify right side
    641,968,064.88x = 334,575,617,312,427,072
  5. Step 5: Solve for x
    x = 334,575,617,312,427,072/641,968,064.88
  6. Step 6: Final answer
    x = 521,171,746.10

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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.