Home / 388,459,315.60-582,688,973.40-370,543,411.60

Finding the Fourth Proportional to 388,459,315.60, 582,688,973.40 and 370,543,411.60

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Solution

The fourth proportional to 388,459,315.60, 582,688,973.40 and 370,543,411.60 is: 555,815,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,459,315.60 : 582,688,973.40 = 370,543,411.60 : x
  2. Step 2: Convert to fraction form
    388,459,315.60/582,688,973.40 = 370,543,411.60/x
  3. Step 3: Cross multiply
    388,459,315.60x = 582,688,973.40 × 370,543,411.60
  4. Step 4: Simplify right side
    388,459,315.60x = 215,911,560,105,337,664
  5. Step 5: Solve for x
    x = 215,911,560,105,337,664/388,459,315.60
  6. Step 6: Final answer
    x = 555,815,117.40

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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.