Home / 388,706,360.70-533,559,465.31-343,666,735.95

Finding the Fourth Proportional to 388,706,360.70, 533,559,465.31 and 343,666,735.95

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Solution

The fourth proportional to 388,706,360.70, 533,559,465.31 and 343,666,735.95 is: 471,735,629.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,706,360.70 : 533,559,465.31 = 343,666,735.95 : x
  2. Step 2: Convert to fraction form
    388,706,360.70/533,559,465.31 = 343,666,735.95/x
  3. Step 3: Cross multiply
    388,706,360.70x = 533,559,465.31 × 343,666,735.95
  4. Step 4: Simplify right side
    388,706,360.70x = 183,366,639,877,455,776
  5. Step 5: Solve for x
    x = 183,366,639,877,455,776/388,706,360.70
  6. Step 6: Final answer
    x = 471,735,629.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.