Home / 488,569,655.34-674,222,962.95-279,766,154.07

Finding the Fourth Proportional to 488,569,655.34, 674,222,962.95 and 279,766,154.07

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Solution

The fourth proportional to 488,569,655.34, 674,222,962.95 and 279,766,154.07 is: 386,075,482.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,569,655.34 : 674,222,962.95 = 279,766,154.07 : x
  2. Step 2: Convert to fraction form
    488,569,655.34/674,222,962.95 = 279,766,154.07/x
  3. Step 3: Cross multiply
    488,569,655.34x = 674,222,962.95 × 279,766,154.07
  4. Step 4: Simplify right side
    488,569,655.34x = 188,624,765,330,201,600
  5. Step 5: Solve for x
    x = 188,624,765,330,201,600/488,569,655.34
  6. Step 6: Final answer
    x = 386,075,482.32

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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.