Home / 145,716,465.60-218,826,640.80-77,692,017.60

Finding the Fourth Proportional to 145,716,465.60, 218,826,640.80 and 77,692,017.60

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Solution

The fourth proportional to 145,716,465.60, 218,826,640.80 and 77,692,017.60 is: 116,672,355.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,716,465.60 : 218,826,640.80 = 77,692,017.60 : x
  2. Step 2: Convert to fraction form
    145,716,465.60/218,826,640.80 = 77,692,017.60/x
  3. Step 3: Cross multiply
    145,716,465.60x = 218,826,640.80 × 77,692,017.60
  4. Step 4: Simplify right side
    145,716,465.60x = 17,001,083,228,382,478
  5. Step 5: Solve for x
    x = 17,001,083,228,382,478/145,716,465.60
  6. Step 6: Final answer
    x = 116,672,355.17

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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.