Home / 86,172,762.86-129,249,569.02-30,838,357.86

Finding the Fourth Proportional to 86,172,762.86, 129,249,569.02 and 30,838,357.86

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Solution

The fourth proportional to 86,172,762.86, 129,249,569.02 and 30,838,357.86 is: 46,254,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,172,762.86 : 129,249,569.02 = 30,838,357.86 : x
  2. Step 2: Convert to fraction form
    86,172,762.86/129,249,569.02 = 30,838,357.86/x
  3. Step 3: Cross multiply
    86,172,762.86x = 129,249,569.02 × 30,838,357.86
  4. Step 4: Simplify right side
    86,172,762.86x = 3,985,844,462,689,529.50
  5. Step 5: Solve for x
    x = 3,985,844,462,689,529.50/86,172,762.86
  6. Step 6: Final answer
    x = 46,254,110.12

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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.