Home / 559,877,415.70-839,816,123.55-423,828,519.70

Finding the Fourth Proportional to 559,877,415.70, 839,816,123.55 and 423,828,519.70

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Solution

The fourth proportional to 559,877,415.70, 839,816,123.55 and 423,828,519.70 is: 635,742,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,877,415.70 : 839,816,123.55 = 423,828,519.70 : x
  2. Step 2: Convert to fraction form
    559,877,415.70/839,816,123.55 = 423,828,519.70/x
  3. Step 3: Cross multiply
    559,877,415.70x = 839,816,123.55 × 423,828,519.70
  4. Step 4: Simplify right side
    559,877,415.70x = 355,938,024,464,388,800
  5. Step 5: Solve for x
    x = 355,938,024,464,388,800/559,877,415.70
  6. Step 6: Final answer
    x = 635,742,779.55

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Double scale
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Similar ratio
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1.5x scale

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.