Home / 655,780,767.86-983,943,039.61-287,125,438.70

Finding the Fourth Proportional to 655,780,767.86, 983,943,039.61 and 287,125,438.70

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Solution

The fourth proportional to 655,780,767.86, 983,943,039.61 and 287,125,438.70 is: 430,807,200.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,780,767.86 : 983,943,039.61 = 287,125,438.70 : x
  2. Step 2: Convert to fraction form
    655,780,767.86/983,943,039.61 = 287,125,438.70/x
  3. Step 3: Cross multiply
    655,780,767.86x = 983,943,039.61 × 287,125,438.70
  4. Step 4: Simplify right side
    655,780,767.86x = 282,515,076,905,833,152
  5. Step 5: Solve for x
    x = 282,515,076,905,833,152/655,780,767.86
  6. Step 6: Final answer
    x = 430,807,200.75

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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.