Home / 191,539,496,841.45-287,309,521,779.76-78,219,222,860.36

Finding the Fourth Proportional to 191,539,496,841.45, 287,309,521,779.76 and 78,219,222,860.36

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Solution

The fourth proportional to 191,539,496,841.45, 287,309,521,779.76 and 78,219,222,860.36 is: 117,328,947,212.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,841.45 : 287,309,521,779.76 = 78,219,222,860.36 : x
  2. Step 2: Convert to fraction form
    191,539,496,841.45/287,309,521,779.76 = 78,219,222,860.36/x
  3. Step 3: Cross multiply
    191,539,496,841.45x = 287,309,521,779.76 × 78,219,222,860.36
  4. Step 4: Simplify right side
    191,539,496,841.45x = 22,473,127,513,995,077,484,544
  5. Step 5: Solve for x
    x = 22,473,127,513,995,077,484,544/191,539,496,841.45
  6. Step 6: Final answer
    x = 117,328,947,212.37

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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.