Finding the Fourth Proportional to 551,559,816.68, 761,198,050.14 and 316,655,808.80
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Solution
The fourth proportional to 551,559,816.68, 761,198,050.14 and 316,655,808.80 is: 437,011,139.92
Step by Step Solution
- Step 1: Write the proportion equation
551,559,816.68 : 761,198,050.14 = 316,655,808.80 : x - Step 2: Convert to fraction form
551,559,816.68/761,198,050.14 = 316,655,808.80/x - Step 3: Cross multiply
551,559,816.68x = 761,198,050.14 × 316,655,808.80 - Step 4: Simplify right side
551,559,816.68x = 241,037,784,224,064,672 - Step 5: Solve for x
x = 241,037,784,224,064,672/551,559,816.68 - Step 6: Final answer
x = 437,011,139.92
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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.