Home / 288,626,072.98-432,895,365.61-78,553,129.01

Finding the Fourth Proportional to 288,626,072.98, 432,895,365.61 and 78,553,129.01

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Solution

The fourth proportional to 288,626,072.98, 432,895,365.61 and 78,553,129.01 is: 117,817,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,626,072.98 : 432,895,365.61 = 78,553,129.01 : x
  2. Step 2: Convert to fraction form
    288,626,072.98/432,895,365.61 = 78,553,129.01/x
  3. Step 3: Cross multiply
    288,626,072.98x = 432,895,365.61 × 78,553,129.01
  4. Step 4: Simplify right side
    288,626,072.98x = 34,005,285,502,636,584
  5. Step 5: Solve for x
    x = 34,005,285,502,636,584/288,626,072.98
  6. Step 6: Final answer
    x = 117,817,788.09

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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.