Home / 77,998,210.45-107,636,205.50-43,190,153.55

Finding the Fourth Proportional to 77,998,210.45, 107,636,205.50 and 43,190,153.55

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Solution

The fourth proportional to 77,998,210.45, 107,636,205.50 and 43,190,153.55 is: 59,601,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998,210.45 : 107,636,205.50 = 43,190,153.55 : x
  2. Step 2: Convert to fraction form
    77,998,210.45/107,636,205.50 = 43,190,153.55/x
  3. Step 3: Cross multiply
    77,998,210.45x = 107,636,205.50 × 43,190,153.55
  4. Step 4: Simplify right side
    77,998,210.45x = 4,648,824,243,084,354
  5. Step 5: Solve for x
    x = 4,648,824,243,084,354/77,998,210.45
  6. Step 6: Final answer
    x = 59,601,678.25

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1.5x scale

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.