Home / 191,424,000.20-287,136,000.30-76,426,291.40

Finding the Fourth Proportional to 191,424,000.20, 287,136,000.30 and 76,426,291.40

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Solution

The fourth proportional to 191,424,000.20, 287,136,000.30 and 76,426,291.40 is: 114,639,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,424,000.20 : 287,136,000.30 = 76,426,291.40 : x
  2. Step 2: Convert to fraction form
    191,424,000.20/287,136,000.30 = 76,426,291.40/x
  3. Step 3: Cross multiply
    191,424,000.20x = 287,136,000.30 × 76,426,291.40
  4. Step 4: Simplify right side
    191,424,000.20x = 21,944,739,630,358,292
  5. Step 5: Solve for x
    x = 21,944,739,630,358,292/191,424,000.20
  6. Step 6: Final answer
    x = 114,639,437.10

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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.