Home / 278,803,430.10-418,205,145.15-248,670,725.40

Finding the Fourth Proportional to 278,803,430.10, 418,205,145.15 and 248,670,725.40

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Solution

The fourth proportional to 278,803,430.10, 418,205,145.15 and 248,670,725.40 is: 373,006,088.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,803,430.10 : 418,205,145.15 = 248,670,725.40 : x
  2. Step 2: Convert to fraction form
    278,803,430.10/418,205,145.15 = 248,670,725.40/x
  3. Step 3: Cross multiply
    278,803,430.10x = 418,205,145.15 × 248,670,725.40
  4. Step 4: Simplify right side
    278,803,430.10x = 103,995,376,810,462,784
  5. Step 5: Solve for x
    x = 103,995,376,810,462,784/278,803,430.10
  6. Step 6: Final answer
    x = 373,006,088.10

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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.