Home / 959,018,490.52-1,323,440,651.28-518,985,342.52

Finding the Fourth Proportional to 959,018,490.52, 1,323,440,651.28 and 518,985,342.52

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Solution

The fourth proportional to 959,018,490.52, 1,323,440,651.28 and 518,985,342.52 is: 716,197,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,018,490.52 : 1,323,440,651.28 = 518,985,342.52 : x
  2. Step 2: Convert to fraction form
    959,018,490.52/1,323,440,651.28 = 518,985,342.52/x
  3. Step 3: Cross multiply
    959,018,490.52x = 1,323,440,651.28 × 518,985,342.52
  4. Step 4: Simplify right side
    959,018,490.52x = 686,846,299,709,442,688
  5. Step 5: Solve for x
    x = 686,846,299,709,442,688/959,018,490.52
  6. Step 6: Final answer
    x = 716,197,139.57

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1.5x scale

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.