Home / 384,779,711.40-530,981,776.13-208,563,923.36

Finding the Fourth Proportional to 384,779,711.40, 530,981,776.13 and 208,563,923.36

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Solution

The fourth proportional to 384,779,711.40, 530,981,776.13 and 208,563,923.36 is: 287,810,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,711.40 : 530,981,776.13 = 208,563,923.36 : x
  2. Step 2: Convert to fraction form
    384,779,711.40/530,981,776.13 = 208,563,923.36/x
  3. Step 3: Cross multiply
    384,779,711.40x = 530,981,776.13 × 208,563,923.36
  4. Step 4: Simplify right side
    384,779,711.40x = 110,743,642,459,679,088
  5. Step 5: Solve for x
    x = 110,743,642,459,679,088/384,779,711.40
  6. Step 6: Final answer
    x = 287,810,503.46

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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.