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Finding the Fourth Proportional to 478,304,278.40, 717,456,417.60 and 362,662,716.80

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Solution

The fourth proportional to 478,304,278.40, 717,456,417.60 and 362,662,716.80 is: 543,994,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,304,278.40 : 717,456,417.60 = 362,662,716.80 : x
  2. Step 2: Convert to fraction form
    478,304,278.40/717,456,417.60 = 362,662,716.80/x
  3. Step 3: Cross multiply
    478,304,278.40x = 717,456,417.60 × 362,662,716.80
  4. Step 4: Simplify right side
    478,304,278.40x = 260,194,693,592,411,360
  5. Step 5: Solve for x
    x = 260,194,693,592,411,360/478,304,278.40
  6. Step 6: Final answer
    x = 543,994,075.20

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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.