Home / 699,209,312.80-1,048,667,002.80-353,838,272.80

Finding the Fourth Proportional to 699,209,312.80, 1,048,667,002.80 and 353,838,272.80

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Solution

The fourth proportional to 699,209,312.80, 1,048,667,002.80 and 353,838,272.80 is: 530,683,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,209,312.80 : 1,048,667,002.80 = 353,838,272.80 : x
  2. Step 2: Convert to fraction form
    699,209,312.80/1,048,667,002.80 = 353,838,272.80/x
  3. Step 3: Cross multiply
    699,209,312.80x = 1,048,667,002.80 × 353,838,272.80
  4. Step 4: Simplify right side
    699,209,312.80x = 371,058,521,013,104,768
  5. Step 5: Solve for x
    x = 371,058,521,013,104,768/699,209,312.80
  6. Step 6: Final answer
    x = 530,683,036.14

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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.