Home / 85,624,502.40-128,262,571.20-53,176,809.60

Finding the Fourth Proportional to 85,624,502.40, 128,262,571.20 and 53,176,809.60

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Solution

The fourth proportional to 85,624,502.40, 128,262,571.20 and 53,176,809.60 is: 79,657,039.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,624,502.40 : 128,262,571.20 = 53,176,809.60 : x
  2. Step 2: Convert to fraction form
    85,624,502.40/128,262,571.20 = 53,176,809.60/x
  3. Step 3: Cross multiply
    85,624,502.40x = 128,262,571.20 × 53,176,809.60
  4. Step 4: Simplify right side
    85,624,502.40x = 6,820,594,327,508,844
  5. Step 5: Solve for x
    x = 6,820,594,327,508,844/85,624,502.40
  6. Step 6: Final answer
    x = 79,657,039.01

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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.