Home / 424,927,357.40-637,391,036.10-252,315,320.60

Finding the Fourth Proportional to 424,927,357.40, 637,391,036.10 and 252,315,320.60

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Solution

The fourth proportional to 424,927,357.40, 637,391,036.10 and 252,315,320.60 is: 378,472,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,927,357.40 : 637,391,036.10 = 252,315,320.60 : x
  2. Step 2: Convert to fraction form
    424,927,357.40/637,391,036.10 = 252,315,320.60/x
  3. Step 3: Cross multiply
    424,927,357.40x = 637,391,036.10 × 252,315,320.60
  4. Step 4: Simplify right side
    424,927,357.40x = 160,823,523,621,137,664
  5. Step 5: Solve for x
    x = 160,823,523,621,137,664/424,927,357.40
  6. Step 6: Final answer
    x = 378,472,980.90

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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.