Home / 918,657,008.64-1,267,718,415.36-522,223,303.68

Finding the Fourth Proportional to 918,657,008.64, 1,267,718,415.36 and 522,223,303.68

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Solution

The fourth proportional to 918,657,008.64, 1,267,718,415.36 and 522,223,303.68 is: 720,652,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,657,008.64 : 1,267,718,415.36 = 522,223,303.68 : x
  2. Step 2: Convert to fraction form
    918,657,008.64/1,267,718,415.36 = 522,223,303.68/x
  3. Step 3: Cross multiply
    918,657,008.64x = 1,267,718,415.36 × 522,223,303.68
  4. Step 4: Simplify right side
    918,657,008.64x = 662,032,099,005,273,600
  5. Step 5: Solve for x
    x = 662,032,099,005,273,600/918,657,008.64
  6. Step 6: Final answer
    x = 720,652,096.24

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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.