Home / 401,918,257.80-602,877,386.70-384,912,145.80

Finding the Fourth Proportional to 401,918,257.80, 602,877,386.70 and 384,912,145.80

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Solution

The fourth proportional to 401,918,257.80, 602,877,386.70 and 384,912,145.80 is: 577,368,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,918,257.80 : 602,877,386.70 = 384,912,145.80 : x
  2. Step 2: Convert to fraction form
    401,918,257.80/602,877,386.70 = 384,912,145.80/x
  3. Step 3: Cross multiply
    401,918,257.80x = 602,877,386.70 × 384,912,145.80
  4. Step 4: Simplify right side
    401,918,257.80x = 232,054,828,568,993,408
  5. Step 5: Solve for x
    x = 232,054,828,568,993,408/401,918,257.80
  6. Step 6: Final answer
    x = 577,368,218.70

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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.