Home / 1,357,035,421.86-1,872,788,875.86-1,021,916,698.92

Finding the Fourth Proportional to 1,357,035,421.86, 1,872,788,875.86 and 1,021,916,698.92

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Solution

The fourth proportional to 1,357,035,421.86, 1,872,788,875.86 and 1,021,916,698.92 is: 1,410,305,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,035,421.86 : 1,872,788,875.86 = 1,021,916,698.92 : x
  2. Step 2: Convert to fraction form
    1,357,035,421.86/1,872,788,875.86 = 1,021,916,698.92/x
  3. Step 3: Cross multiply
    1,357,035,421.86x = 1,872,788,875.86 × 1,021,916,698.92
  4. Step 4: Simplify right side
    1,357,035,421.86x = 1,913,834,225,792,948,736
  5. Step 5: Solve for x
    x = 1,913,834,225,792,948,736/1,357,035,421.86
  6. Step 6: Final answer
    x = 1,410,305,283.83

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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.