Home / 657,909,969.60-986,487,040.80-197,779,166.40

Finding the Fourth Proportional to 657,909,969.60, 986,487,040.80 and 197,779,166.40

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Solution

The fourth proportional to 657,909,969.60, 986,487,040.80 and 197,779,166.40 is: 296,555,142.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,909,969.60 : 986,487,040.80 = 197,779,166.40 : x
  2. Step 2: Convert to fraction form
    657,909,969.60/986,487,040.80 = 197,779,166.40/x
  3. Step 3: Cross multiply
    657,909,969.60x = 986,487,040.80 × 197,779,166.40
  4. Step 4: Simplify right side
    657,909,969.60x = 195,106,584,593,826,784
  5. Step 5: Solve for x
    x = 195,106,584,593,826,784/657,909,969.60
  6. Step 6: Final answer
    x = 296,555,142.21

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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.