Home / 384,779,701.23-530,981,762.05-208,563,913.18

Finding the Fourth Proportional to 384,779,701.23, 530,981,762.05 and 208,563,913.18

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Solution

The fourth proportional to 384,779,701.23, 530,981,762.05 and 208,563,913.18 is: 287,810,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,701.23 : 530,981,762.05 = 208,563,913.18 : x
  2. Step 2: Convert to fraction form
    384,779,701.23/530,981,762.05 = 208,563,913.18/x
  3. Step 3: Cross multiply
    384,779,701.23x = 530,981,762.05 × 208,563,913.18
  4. Step 4: Simplify right side
    384,779,701.23x = 110,743,634,120,359,632
  5. Step 5: Solve for x
    x = 110,743,634,120,359,632/384,779,701.23
  6. Step 6: Final answer
    x = 287,810,489.40

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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.