Finding the Fourth Proportional to 152,720,966.08, 210,754,967.60 and 84,043,334.08
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Solution
The fourth proportional to 152,720,966.08, 210,754,967.60 and 84,043,334.08 is: 115,979,819.97
Step by Step Solution
- Step 1: Write the proportion equation
152,720,966.08 : 210,754,967.60 = 84,043,334.08 : x - Step 2: Convert to fraction form
152,720,966.08/210,754,967.60 = 84,043,334.08/x - Step 3: Cross multiply
152,720,966.08x = 210,754,967.60 × 84,043,334.08 - Step 4: Simplify right side
152,720,966.08x = 17,712,550,151,026,374 - Step 5: Solve for x
x = 17,712,550,151,026,374/152,720,966.08 - Step 6: Final answer
x = 115,979,819.97
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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.