Home / 236,328,779.70-354,858,123.15-128,833,355.70

Finding the Fourth Proportional to 236,328,779.70, 354,858,123.15 and 128,833,355.70

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Solution

The fourth proportional to 236,328,779.70, 354,858,123.15 and 128,833,355.70 is: 193,448,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,328,779.70 : 354,858,123.15 = 128,833,355.70 : x
  2. Step 2: Convert to fraction form
    236,328,779.70/354,858,123.15 = 128,833,355.70/x
  3. Step 3: Cross multiply
    236,328,779.70x = 354,858,123.15 × 128,833,355.70
  4. Step 4: Simplify right side
    236,328,779.70x = 45,717,562,802,818,352
  5. Step 5: Solve for x
    x = 45,717,562,802,818,352/236,328,779.70
  6. Step 6: Final answer
    x = 193,448,986.03

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1.5x scale

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.