Home / 191,539,496,779.18-287,309,521,686.44-78,219,222,798.20

Finding the Fourth Proportional to 191,539,496,779.18, 287,309,521,686.44 and 78,219,222,798.20

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Solution

The fourth proportional to 191,539,496,779.18, 287,309,521,686.44 and 78,219,222,798.20 is: 117,328,947,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,539,496,779.18 : 287,309,521,686.44 = 78,219,222,798.20 : x
  2. Step 2: Convert to fraction form
    191,539,496,779.18/287,309,521,686.44 = 78,219,222,798.20/x
  3. Step 3: Cross multiply
    191,539,496,779.18x = 287,309,521,686.44 × 78,219,222,798.20
  4. Step 4: Simplify right side
    191,539,496,779.18x = 22,473,127,488,835,922,427,904
  5. Step 5: Solve for x
    x = 22,473,127,488,835,922,427,904/191,539,496,779.18
  6. Step 6: Final answer
    x = 117,328,947,119.17

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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.