Home / 346,677,411.60-520,016,117.40-142,352,125.20

Finding the Fourth Proportional to 346,677,411.60, 520,016,117.40 and 142,352,125.20

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Solution

The fourth proportional to 346,677,411.60, 520,016,117.40 and 142,352,125.20 is: 213,528,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,677,411.60 : 520,016,117.40 = 142,352,125.20 : x
  2. Step 2: Convert to fraction form
    346,677,411.60/520,016,117.40 = 142,352,125.20/x
  3. Step 3: Cross multiply
    346,677,411.60x = 520,016,117.40 × 142,352,125.20
  4. Step 4: Simplify right side
    346,677,411.60x = 74,025,399,450,142,688
  5. Step 5: Solve for x
    x = 74,025,399,450,142,688/346,677,411.60
  6. Step 6: Final answer
    x = 213,528,187.80

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1.5x scale

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.