Home / 1,076,187,970.52-1,485,170,875.86-630,109,598.12

Finding the Fourth Proportional to 1,076,187,970.52, 1,485,170,875.86 and 630,109,598.12

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Solution

The fourth proportional to 1,076,187,970.52, 1,485,170,875.86 and 630,109,598.12 is: 869,569,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,187,970.52 : 1,485,170,875.86 = 630,109,598.12 : x
  2. Step 2: Convert to fraction form
    1,076,187,970.52/1,485,170,875.86 = 630,109,598.12/x
  3. Step 3: Cross multiply
    1,076,187,970.52x = 1,485,170,875.86 × 630,109,598.12
  4. Step 4: Simplify right side
    1,076,187,970.52x = 935,820,423,731,385,728
  5. Step 5: Solve for x
    x = 935,820,423,731,385,728/1,076,187,970.52
  6. Step 6: Final answer
    x = 869,569,674.97

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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.