Home / 100,076,875.68-138,105,032.88-56,024,236.32

Finding the Fourth Proportional to 100,076,875.68, 138,105,032.88 and 56,024,236.32

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Solution

The fourth proportional to 100,076,875.68, 138,105,032.88 and 56,024,236.32 is: 77,312,855.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,076,875.68 : 138,105,032.88 = 56,024,236.32 : x
  2. Step 2: Convert to fraction form
    100,076,875.68/138,105,032.88 = 56,024,236.32/x
  3. Step 3: Cross multiply
    100,076,875.68x = 138,105,032.88 × 56,024,236.32
  4. Step 4: Simplify right side
    100,076,875.68x = 7,737,228,999,050,490
  5. Step 5: Solve for x
    x = 7,737,228,999,050,490/100,076,875.68
  6. Step 6: Final answer
    x = 77,312,855.21

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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.