Home / 982,111,666.91-1,355,111,779.73-564,343,239.60

Finding the Fourth Proportional to 982,111,666.91, 1,355,111,779.73 and 564,343,239.60

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Solution

The fourth proportional to 982,111,666.91, 1,355,111,779.73 and 564,343,239.60 is: 778,677,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,111,666.91 : 1,355,111,779.73 = 564,343,239.60 : x
  2. Step 2: Convert to fraction form
    982,111,666.91/1,355,111,779.73 = 564,343,239.60/x
  3. Step 3: Cross multiply
    982,111,666.91x = 1,355,111,779.73 × 564,343,239.60
  4. Step 4: Simplify right side
    982,111,666.91x = 764,748,171,790,128,128
  5. Step 5: Solve for x
    x = 764,748,171,790,128,128/982,111,666.91
  6. Step 6: Final answer
    x = 778,677,412.72

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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.