Finding the Fourth Proportional to 153,246,418.56, 211,484,541.12 and 83,636,264.16
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Solution
The fourth proportional to 153,246,418.56, 211,484,541.12 and 83,636,264.16 is: 115,420,491.47
Step by Step Solution
- Step 1: Write the proportion equation
153,246,418.56 : 211,484,541.12 = 83,636,264.16 : x - Step 2: Convert to fraction form
153,246,418.56/211,484,541.12 = 83,636,264.16/x - Step 3: Cross multiply
153,246,418.56x = 211,484,541.12 × 83,636,264.16 - Step 4: Simplify right side
153,246,418.56x = 17,687,776,946,868,702 - Step 5: Solve for x
x = 17,687,776,946,868,702/153,246,418.56 - Step 6: Final answer
x = 115,420,491.47
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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.