Home / 152,018,542.60-209,784,019.43-85,036,632.50

Finding the Fourth Proportional to 152,018,542.60, 209,784,019.43 and 85,036,632.50

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Solution

The fourth proportional to 152,018,542.60, 209,784,019.43 and 85,036,632.50 is: 117,349,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,018,542.60 : 209,784,019.43 = 85,036,632.50 : x
  2. Step 2: Convert to fraction form
    152,018,542.60/209,784,019.43 = 85,036,632.50/x
  3. Step 3: Cross multiply
    152,018,542.60x = 209,784,019.43 × 85,036,632.50
  4. Step 4: Simplify right side
    152,018,542.60x = 17,839,326,565,378,822
  5. Step 5: Solve for x
    x = 17,839,326,565,378,822/152,018,542.60
  6. Step 6: Final answer
    x = 117,349,674.98

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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.