Home / 191,539,496,798.91-287,309,521,715.90-78,219,222,817.79

Finding the Fourth Proportional to 191,539,496,798.91, 287,309,521,715.90 and 78,219,222,817.79

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Solution

The fourth proportional to 191,539,496,798.91, 287,309,521,715.90 and 78,219,222,817.79 is: 117,328,947,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,798.91 : 287,309,521,715.90 = 78,219,222,817.79 : x
  2. Step 2: Convert to fraction form
    191,539,496,798.91/287,309,521,715.90 = 78,219,222,817.79/x
  3. Step 3: Cross multiply
    191,539,496,798.91x = 287,309,521,715.90 × 78,219,222,817.79
  4. Step 4: Simplify right side
    191,539,496,798.91x = 22,473,127,496,767,221,268,480
  5. Step 5: Solve for x
    x = 22,473,127,496,767,221,268,480/191,539,496,798.91
  6. Step 6: Final answer
    x = 117,328,947,148.49

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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.