Home / 77,666,814.40-116,574,871.20-39,371,569.60

Finding the Fourth Proportional to 77,666,814.40, 116,574,871.20 and 39,371,569.60

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Solution

The fourth proportional to 77,666,814.40, 116,574,871.20 and 39,371,569.60 is: 59,095,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,666,814.40 : 116,574,871.20 = 39,371,569.60 : x
  2. Step 2: Convert to fraction form
    77,666,814.40/116,574,871.20 = 39,371,569.60/x
  3. Step 3: Cross multiply
    77,666,814.40x = 116,574,871.20 × 39,371,569.60
  4. Step 4: Simplify right side
    77,666,814.40x = 4,589,735,655,061,836
  5. Step 5: Solve for x
    x = 4,589,735,655,061,836/77,666,814.40
  6. Step 6: Final answer
    x = 59,095,196.46

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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.