Home / 896,865,547.20-1,345,298,320.80-815,076,777.30

Finding the Fourth Proportional to 896,865,547.20, 1,345,298,320.80 and 815,076,777.30

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Solution

The fourth proportional to 896,865,547.20, 1,345,298,320.80 and 815,076,777.30 is: 1,222,615,165.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,865,547.20 : 1,345,298,320.80 = 815,076,777.30 : x
  2. Step 2: Convert to fraction form
    896,865,547.20/1,345,298,320.80 = 815,076,777.30/x
  3. Step 3: Cross multiply
    896,865,547.20x = 1,345,298,320.80 × 815,076,777.30
  4. Step 4: Simplify right side
    896,865,547.20x = 1,096,521,419,824,765,440
  5. Step 5: Solve for x
    x = 1,096,521,419,824,765,440/896,865,547.20
  6. Step 6: Final answer
    x = 1,222,615,165.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.