Home / 813,803,871.17-1,219,165,538.01-480,815,070.23

Finding the Fourth Proportional to 813,803,871.17, 1,219,165,538.01 and 480,815,070.23

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Solution

The fourth proportional to 813,803,871.17, 1,219,165,538.01 and 480,815,070.23 is: 720,312,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,803,871.17 : 1,219,165,538.01 = 480,815,070.23 : x
  2. Step 2: Convert to fraction form
    813,803,871.17/1,219,165,538.01 = 480,815,070.23/x
  3. Step 3: Cross multiply
    813,803,871.17x = 1,219,165,538.01 × 480,815,070.23
  4. Step 4: Simplify right side
    813,803,871.17x = 586,193,163,774,178,048
  5. Step 5: Solve for x
    x = 586,193,163,774,178,048/813,803,871.17
  6. Step 6: Final answer
    x = 720,312,577.20

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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.