Home / 1,223,139,721.70-1,834,709,582.55-764,492,579.30

Finding the Fourth Proportional to 1,223,139,721.70, 1,834,709,582.55 and 764,492,579.30

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Solution

The fourth proportional to 1,223,139,721.70, 1,834,709,582.55 and 764,492,579.30 is: 1,146,738,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,139,721.70 : 1,834,709,582.55 = 764,492,579.30 : x
  2. Step 2: Convert to fraction form
    1,223,139,721.70/1,834,709,582.55 = 764,492,579.30/x
  3. Step 3: Cross multiply
    1,223,139,721.70x = 1,834,709,582.55 × 764,492,579.30
  4. Step 4: Simplify right side
    1,223,139,721.70x = 1,402,621,861,030,075,648
  5. Step 5: Solve for x
    x = 1,402,621,861,030,075,648/1,223,139,721.70
  6. Step 6: Final answer
    x = 1,146,738,868.95

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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.