Home / 105,509,918.86-145,674,746.85-65,877,800.02

Finding the Fourth Proportional to 105,509,918.86, 145,674,746.85 and 65,877,800.02

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Solution

The fourth proportional to 105,509,918.86, 145,674,746.85 and 65,877,800.02 is: 90,955,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,509,918.86 : 145,674,746.85 = 65,877,800.02 : x
  2. Step 2: Convert to fraction form
    105,509,918.86/145,674,746.85 = 65,877,800.02/x
  3. Step 3: Cross multiply
    105,509,918.86x = 145,674,746.85 × 65,877,800.02
  4. Step 4: Simplify right side
    105,509,918.86x = 9,596,731,840,948,426
  5. Step 5: Solve for x
    x = 9,596,731,840,948,426/105,509,918.86
  6. Step 6: Final answer
    x = 90,955,731.41

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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.