Home / 1,177,429,861.69-1,624,887,868.84-648,827,898.40

Finding the Fourth Proportional to 1,177,429,861.69, 1,624,887,868.84 and 648,827,898.40

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Solution

The fourth proportional to 1,177,429,861.69, 1,624,887,868.84 and 648,827,898.40 is: 895,401,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,429,861.69 : 1,624,887,868.84 = 648,827,898.40 : x
  2. Step 2: Convert to fraction form
    1,177,429,861.69/1,624,887,868.84 = 648,827,898.40/x
  3. Step 3: Cross multiply
    1,177,429,861.69x = 1,624,887,868.84 × 648,827,898.40
  4. Step 4: Simplify right side
    1,177,429,861.69x = 1,054,272,581,075,546,496
  5. Step 5: Solve for x
    x = 1,054,272,581,075,546,496/1,177,429,861.69
  6. Step 6: Final answer
    x = 895,401,599.18

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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.