Home / 78,908,218,916.09-118,362,326,086.74-36,400,539,518.87

Finding the Fourth Proportional to 78,908,218,916.09, 118,362,326,086.74 and 36,400,539,518.87

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Solution

The fourth proportional to 78,908,218,916.09, 118,362,326,086.74 and 36,400,539,518.87 is: 54,600,808,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,908,218,916.09 : 118,362,326,086.74 = 36,400,539,518.87 : x
  2. Step 2: Convert to fraction form
    78,908,218,916.09/118,362,326,086.74 = 36,400,539,518.87/x
  3. Step 3: Cross multiply
    78,908,218,916.09x = 118,362,326,086.74 × 36,400,539,518.87
  4. Step 4: Simplify right side
    78,908,218,916.09x = 4,308,452,528,265,757,196,288
  5. Step 5: Solve for x
    x = 4,308,452,528,265,757,196,288/78,908,218,916.09
  6. Step 6: Final answer
    x = 54,600,808,223.12

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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.