Home / 653,238,085.80-979,857,128.70-435,559,852.20

Finding the Fourth Proportional to 653,238,085.80, 979,857,128.70 and 435,559,852.20

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Solution

The fourth proportional to 653,238,085.80, 979,857,128.70 and 435,559,852.20 is: 653,339,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,238,085.80 : 979,857,128.70 = 435,559,852.20 : x
  2. Step 2: Convert to fraction form
    653,238,085.80/979,857,128.70 = 435,559,852.20/x
  3. Step 3: Cross multiply
    653,238,085.80x = 979,857,128.70 × 435,559,852.20
  4. Step 4: Simplify right side
    653,238,085.80x = 426,786,426,153,688,384
  5. Step 5: Solve for x
    x = 426,786,426,153,688,384/653,238,085.80
  6. Step 6: Final answer
    x = 653,339,778.30

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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.