Home / 389,473,344.40-537,509,271.02-215,633,088.40

Finding the Fourth Proportional to 389,473,344.40, 537,509,271.02 and 215,633,088.40

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Solution

The fourth proportional to 389,473,344.40, 537,509,271.02 and 215,633,088.40 is: 297,593,624.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,473,344.40 : 537,509,271.02 = 215,633,088.40 : x
  2. Step 2: Convert to fraction form
    389,473,344.40/537,509,271.02 = 215,633,088.40/x
  3. Step 3: Cross multiply
    389,473,344.40x = 537,509,271.02 × 215,633,088.40
  4. Step 4: Simplify right side
    389,473,344.40x = 115,904,784,153,675,216
  5. Step 5: Solve for x
    x = 115,904,784,153,675,216/389,473,344.40
  6. Step 6: Final answer
    x = 297,593,624.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.