Home / 278,518,927,545.72-384,357,421,618.24-158,231,466,208.44

Finding the Fourth Proportional to 278,518,927,545.72, 384,357,421,618.24 and 158,231,466,208.44

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Solution

The fourth proportional to 278,518,927,545.72, 384,357,421,618.24 and 158,231,466,208.44 is: 218,360,162,832.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,518,927,545.72 : 384,357,421,618.24 = 158,231,466,208.44 : x
  2. Step 2: Convert to fraction form
    278,518,927,545.72/384,357,421,618.24 = 158,231,466,208.44/x
  3. Step 3: Cross multiply
    278,518,927,545.72x = 384,357,421,618.24 × 158,231,466,208.44
  4. Step 4: Simplify right side
    278,518,927,545.72x = 60,817,438,370,749,667,606,528
  5. Step 5: Solve for x
    x = 60,817,438,370,749,667,606,528/278,518,927,545.72
  6. Step 6: Final answer
    x = 218,360,162,832.26

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1.5x scale

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.