Home / 578,392,506-867,586,866.63-209,926,967.13

Finding the Fourth Proportional to 578,392,506, 867,586,866.63 and 209,926,967.13

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Solution

The fourth proportional to 578,392,506, 867,586,866.63 and 209,926,967.13 is: 314,889,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,392,506 : 867,586,866.63 = 209,926,967.13 : x
  2. Step 2: Convert to fraction form
    578,392,506/867,586,866.63 = 209,926,967.13/x
  3. Step 3: Cross multiply
    578,392,506x = 867,586,866.63 × 209,926,967.13
  4. Step 4: Simplify right side
    578,392,506x = 182,129,879,633,455,712
  5. Step 5: Solve for x
    x = 182,129,879,633,455,712/578,392,506
  6. Step 6: Final answer
    x = 314,889,763.86

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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.