Home / 86,938,521.87-119,977,860.12-47,779,587.03

Finding the Fourth Proportional to 86,938,521.87, 119,977,860.12 and 47,779,587.03

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Solution

The fourth proportional to 86,938,521.87, 119,977,860.12 and 47,779,587.03 is: 65,937,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,938,521.87 : 119,977,860.12 = 47,779,587.03 : x
  2. Step 2: Convert to fraction form
    86,938,521.87/119,977,860.12 = 47,779,587.03/x
  3. Step 3: Cross multiply
    86,938,521.87x = 119,977,860.12 × 47,779,587.03
  4. Step 4: Simplify right side
    86,938,521.87x = 5,732,492,609,276,707
  5. Step 5: Solve for x
    x = 5,732,492,609,276,707/86,938,521.87
  6. Step 6: Final answer
    x = 65,937,313.93

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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.