Home / 105,509,917.86-145,674,745.47-65,877,799.02

Finding the Fourth Proportional to 105,509,917.86, 145,674,745.47 and 65,877,799.02

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Solution

The fourth proportional to 105,509,917.86, 145,674,745.47 and 65,877,799.02 is: 90,955,730.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,509,917.86 : 145,674,745.47 = 65,877,799.02 : x
  2. Step 2: Convert to fraction form
    105,509,917.86/145,674,745.47 = 65,877,799.02/x
  3. Step 3: Cross multiply
    105,509,917.86x = 145,674,745.47 × 65,877,799.02
  4. Step 4: Simplify right side
    105,509,917.86x = 9,596,731,604,362,316
  5. Step 5: Solve for x
    x = 9,596,731,604,362,316/105,509,917.86
  6. Step 6: Final answer
    x = 90,955,730.03

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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.