Home / 476,930,579.20-715,395,868.80-400,403,075.20

Finding the Fourth Proportional to 476,930,579.20, 715,395,868.80 and 400,403,075.20

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Solution

The fourth proportional to 476,930,579.20, 715,395,868.80 and 400,403,075.20 is: 600,604,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,930,579.20 : 715,395,868.80 = 400,403,075.20 : x
  2. Step 2: Convert to fraction form
    476,930,579.20/715,395,868.80 = 400,403,075.20/x
  3. Step 3: Cross multiply
    476,930,579.20x = 715,395,868.80 × 400,403,075.20
  4. Step 4: Simplify right side
    476,930,579.20x = 286,446,705,852,895,712
  5. Step 5: Solve for x
    x = 286,446,705,852,895,712/476,930,579.20
  6. Step 6: Final answer
    x = 600,604,612.80

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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.