Home / 908,075,499.84-1,253,144,182.40-490,387,748.24

Finding the Fourth Proportional to 908,075,499.84, 1,253,144,182.40 and 490,387,748.24

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Solution

The fourth proportional to 908,075,499.84, 1,253,144,182.40 and 490,387,748.24 is: 676,735,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,075,499.84 : 1,253,144,182.40 = 490,387,748.24 : x
  2. Step 2: Convert to fraction form
    908,075,499.84/1,253,144,182.40 = 490,387,748.24/x
  3. Step 3: Cross multiply
    908,075,499.84x = 1,253,144,182.40 × 490,387,748.24
  4. Step 4: Simplify right side
    908,075,499.84x = 614,526,553,827,191,936
  5. Step 5: Solve for x
    x = 614,526,553,827,191,936/908,075,499.84
  6. Step 6: Final answer
    x = 676,735,088.59

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1.5x scale

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.