Home / 141,779,809.53-195,651,303.09-78,202,667.76

Finding the Fourth Proportional to 141,779,809.53, 195,651,303.09 and 78,202,667.76

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Solution

The fourth proportional to 141,779,809.53, 195,651,303.09 and 78,202,667.76 is: 107,917,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,779,809.53 : 195,651,303.09 = 78,202,667.76 : x
  2. Step 2: Convert to fraction form
    141,779,809.53/195,651,303.09 = 78,202,667.76/x
  3. Step 3: Cross multiply
    141,779,809.53x = 195,651,303.09 × 78,202,667.76
  4. Step 4: Simplify right side
    141,779,809.53x = 15,300,453,852,358,332
  5. Step 5: Solve for x
    x = 15,300,453,852,358,332/141,779,809.53
  6. Step 6: Final answer
    x = 107,917,015.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.