Home / 653,203,931.20-979,805,896.80-290,406,875.20

Finding the Fourth Proportional to 653,203,931.20, 979,805,896.80 and 290,406,875.20

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Solution

The fourth proportional to 653,203,931.20, 979,805,896.80 and 290,406,875.20 is: 435,610,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,203,931.20 : 979,805,896.80 = 290,406,875.20 : x
  2. Step 2: Convert to fraction form
    653,203,931.20/979,805,896.80 = 290,406,875.20/x
  3. Step 3: Cross multiply
    653,203,931.20x = 979,805,896.80 × 290,406,875.20
  4. Step 4: Simplify right side
    653,203,931.20x = 284,542,368,792,221,664
  5. Step 5: Solve for x
    x = 284,542,368,792,221,664/653,203,931.20
  6. Step 6: Final answer
    x = 435,610,312.80

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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.