Finding the Fourth Proportional to 688,840,931.84, 950,607,905.28 and 375,572,589.44
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Solution
The fourth proportional to 688,840,931.84, 950,607,905.28 and 375,572,589.44 is: 518,294,218.63
Step by Step Solution
- Step 1: Write the proportion equation
688,840,931.84 : 950,607,905.28 = 375,572,589.44 : x - Step 2: Convert to fraction form
688,840,931.84/950,607,905.28 = 375,572,589.44/x - Step 3: Cross multiply
688,840,931.84x = 950,607,905.28 × 375,572,589.44 - Step 4: Simplify right side
688,840,931.84x = 357,022,272,528,143,808 - Step 5: Solve for x
x = 357,022,272,528,143,808/688,840,931.84 - Step 6: Final answer
x = 518,294,218.63
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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.